n
(medicine, rare) Lack of sight; blindness.
n
Inability to distinguish the colour green.
n
The inability of a cell or tissue to be stained.
n
A person who has achromatopia.
n
defective ability to see colours
n
color blindness; inability to distinguish colors; daltonism, achromatopia
n
(pathology) the congenital absence of the pupil in an eye
n
(archaic, medicine) Color blindness, achromatopsia.
n
Inability to see the colour blue.
n
A form of color blindness: the inability to distinguish blue.
n
Alternative form of acyanopia [A form of color blindness: the inability to distinguish blue.]
n
(medicine, neurology) A neurological disorder characterized by a tonically dilated pupil that reacts slowly to light but shows a more definite response to accommodation (i.e., light-near dissociation).
n
(medicine, neurology) Adie syndrome.
n
An ulcer or fistula in the inner angle of the eye.
n
Alternative form of asthenopia [An ophthalmological condition that manifests itself through nonspecific symptoms such as fatigue, red eyes, eye strain, pain in or around the eyes, blurred vision, headache and occasional double vision.]
adj
(optics, of an imaging system) Not focused
adj
Lacking the retinal fovea.
n
A medical condition of clouding of the posterior lens capsule implanted in the eye in cataract surgery.
n
An inability to perceive motion, despite stationary objects remaining more or less visible, due to brain damage disrupting input to the dorsal pathway.
n
(pathology) A defect in colour vision.
n
Any form of blindness that is accompanied by no obvious change to the eye; often the result of disease of the optic nerve.
n
A person afflicted with amblyopia.
n
dimness or blurring of the eyesight due to a fault in transmission of signals to the brain from an otherwise healthy eye.
n
(medicine) Any of several disorders of the eye (spherical or cylindrical) resulting from faulty refractive ability.
n
(humorous, rare) A fictitious medical condition which causes a person to be unable to see their "ass" (i.e., themselves) doing something such as going to work, school, jury duty, etc.
n
(medicine) A tendency for both eyes to look upward.
n
(medicine) A disorder of the vision. Deviation of the visual axis of one eye upwards when the other eye is fixing; anaphoria.
n
A rare congenital condition characterized by the underdevelopment of the iris of the eye.
n
(medicine, ophthalmology) An ophthalmological condition where there is a significant difference in the perceived size of images.
n
(pathology) A condition characterized by unequal size of the pupils of the eye
n
An individual who exhibits anisocoria.
n
Alternative spelling of aniseikonia [(medicine, ophthalmology) An ophthalmological condition where there is a significant difference in the perceived size of images.]
n
hypermetropia to a different extent in each eye
n
Alternative form of aniseikonia [(medicine, ophthalmology) An ophthalmological condition where there is a significant difference in the perceived size of images.]
n
(ophthalmology) A condition in which the two eyes of an individual have different refractive power.
n
A person who has anisomyopia.
n
(pathology) The presence of different degrees of myopia in the two eyes
n
(optics) The absence of spatial invariance over an extended field of view
n
(pathology) fusion of the margins of the eyelids
n
The measurement of color blindness using an anomaloscope.
n
(medicine) A condition in which one eye gazes upward while the other looks straight ahead.
n
(teratology) The congenital absence of one or both eyes
n
Alternative form of anophthalmia [(teratology) The congenital absence of one or both eyes]
n
(medicine) State or condition of sightlessness, often due to medical reasons.
n
(medicine) A defect of vision in which straight lines appear to be curved
n
(ophthalmology) An extreme form of anisometropia in which one eye is myopic and the other hyperopic.
adj
(medicine) Relating to a slant of the eyes associated with certain conditions, opposite to that seen in Down syndrome.
n
(ethology) An (often voluntary) movement of the eye away from a point of stimulus
n
A rare symptom of brain damage occurring in the occipital lobe, in which the patient is "cortically blind" but affirms that he or she is capable of seeing.
n
(ophthalmology) The absence of the lens of the eye, causing hypermetropia and a loss of accommodation.
n
(pathology, ophthalmology) The flattening of the cornea, especially by the application of pressure.
n
(medicine) Pupils which narrow to track an object as it approaches the face, but which will not narrow in reaction to increased light ("accommodating, but not reactive"); a symptom of the neurosyphilis stage syphilis infection.
n
Lubricant eyedrops used to treat the dryness and irritation associated with deficient tear production in keratoconjunctivitis sicca.
n
(pathology) torpidity of the pupillary light reflex
n
An ophthalmological condition that manifests itself through nonspecific symptoms such as fatigue, red eyes, eye strain, pain in or around the eyes, blurred vision, headache and occasional double vision.
adj
Having, or pertaining to, asthenopia.
adj
(medicine) Suffering from astigmatism.
n
(pathology) A disorder of the vision, usually due to a misshapen cornea, such that light does not focus correctly on the retina causing a blurred image.
n
(pathology) Any disease that affects the auditory system.
n
Inability to see the colours yellow and blue.
n
(pathology) The condition of being partially color blind.
adj
Relating to blepharitis.
n
(medicine) An increase in the frequency or duration of blinking.
n
(medicine) A condition involving bilateral ptosis with reduced eyelid size, vertically and horizontally, a flat nasal bridge, and hypoplastic orbital rim.
n
The drooping of the upper eyelid.
n
(medicine) A physiological condition characterized by recurring involuntary twitches or closing of the eyelids.
adj
Relating to blepharospasm.
n
The place where the optic nerve attaches to the retina, and so where the retina cannot detect light.
n
(medicine, informal) Mydriasis.
n
(pathology) A failure of the eyes to respond quickly to changing light levels, or to perceive a moving object against a bright background
n
A hallucination or visual disorder in which objects appear larger or nearer than they are; macropsia.
n
A rare eye disorder characterized by defects and errors in eye movement, caused by a malfunction of the superior oblique tendon.
n
Alternative form of Brown syndrome [A rare eye disorder characterized by defects and errors in eye movement, caused by a malfunction of the superior oblique tendon.]
n
buphthalmos; abnormal enlargement of the eyeball
n
(medicine) Abnormal enlargement of the eyeball.
n
(medicine, obsolete) dimness or obscurity of sight, caused by a speck on the cornea
adj
(pathology) Describing a number of syndromes characterised by heart problems and deafness
n
(pathology) A clouding of the lens in the eye leading to a decrease in vision.
adj
Describing the part of vision that detects green light
n
(pathology) A visual defect in which objects appear to have a greenish tinge
n
An abnormal accumulation of fluid in the suprachoroidal space, typically as a result of glaucoma surgery
n
A visual aberration in which objects appear abnormally coloured, such as xanthopsia or cyanopia.
n
(neurology, psychology) sound-to-color synaesthesia
n
(rare) Aversion to a colour or colours.
n
(veterinary medicine) A congenital, inherited, bilateral eye disease of dogs characterized by an underdeveloped choroid.
n
(medicine) An abnormal hole present from birth in one of the structures of the eye, such as the lens, eyelid, or retina.
n
(pathology) Any of several medical conditions in which the physical ability to see colors is impaired, especially achromatopsia, Daltonism.
n
Alternative form of color blindness [(pathology) Any of several medical conditions in which the physical ability to see colors is impaired, especially achromatopsia, Daltonism.]
n
Alternative form of color blindness [(pathology) Any of several medical conditions in which the physical ability to see colors is impaired, especially achromatopsia, Daltonism.]
n
Alternative form of color blindness [(pathology) Any of several medical conditions in which the physical ability to see colors is impaired, especially achromatopsia, Daltonism.]
n
Alternative form of color blindness [(pathology) Any of several medical conditions in which the physical ability to see colors is impaired, especially achromatopsia, Daltonism.]
n
(optics) A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points.
adj
(ophthalmology) Describing the degree of eye misalignment when looking at objects that does not depend on direction of gaze
n
(pathology) A disorder of the vision where both focal lines are located behind the retina.
n
(pathology) A disorder of the vision where both focal lines are located in front of the retina.
n
A temporary condition resulting from focusing the eyes on a computer display for extended periods of time. Symptoms include headaches, blurry vision, and difficulty in refocusing.
n
(pathology) The abnormal situation in which the conjunctiva begins to cover the cornea.
n
(medicine) A condition where the eye surface has excess folds of the conjunctiva located between the globe of the eye and the eyelid margin.
n
The displacement of the eye's pupil from its normal, central position.
n
A form of strabismus in which the eyes converge; esotropia
n
The state of being cross-eyed; esotropia
n
A rare congenital anomaly in which the skin is continuous over the eyeball, with absence of eyelids.
n
Alternative form of cyanopsia [A disorder of the vision causing all objects to appear blue, often the temporary consequence of removal of a cataract.]
adj
Describing the part of vision that detects blue/green light
n
A disorder of the vision causing all objects to appear blue, often the temporary consequence of removal of a cataract.
n
The extent of the movement of the eyeball along the anteroposterior axis
n
A form of strabismus involving a rotating movement of the eye.
n
(teratology) A congenital abnormality in which the orbits of the eye do not divide to form separate sockets.
adj
(pathology) Related to cyclopia
n
paralysis of the ciliary muscle of the eye, resulting in a loss of accommodation
n
(medicine) Torsional movement of the eye (rotational movement that does not shift the centre of the pupil).
n
A form of strabismus in which, compared to the correct positioning of the eyes, there is a torsion of one eye (or both) about the eye's visual axis. Consequently, the visual fields of the two eyes appear tilted relative to each other.
adj
Describing a form of cyclotropia due to misalignment of cyclodeviation between the two eyes
n
(ophthalmology) The formation, or the presence of dacryoliths.
n
An excess of tears in the eye
n
(ophthalmology) Obstruction of the nasolacrimal duct.
n
(dated) A color blind person.
adj
Suffering from Daltonism; colour blind, especially red-green colour blind.
n
Alternative letter-case form of Daltonism [(medicine, pathology) Inability or defective ability to perceive or distinguish certain colors, especially red-green color blindness.]
n
A person afflicted with daltonism.
n
(medicine) The inability to see clearly in bright light; hemeralopia
n
Alternative form of daysight [night blindness]
n
Alternative form of day blindness [(medicine) The inability to see clearly in bright light; hemeralopia]
n
(medicine) lowering of the eyes; downward gaze
n
A kind of ulcer that extends through the stroma in the eye, exposing Descemet's membrane.
n
A person who has deuteranomaly or deuteranopia
n
(ophthalmology) A form of anomalous trichromacy involving a reduction in sensitivity to the green area of the spectrum.
n
One who has deuteranopia.
n
A form of color blindness in which the retina is deficient in or lacks cone cells containing opsins that respond to the color green, resulting in an inability to distinguish red from green.
n
(medicine) A condition in which the top of the eye rotates to the right.
n
(medicine) eye movement down and to the right
n
(medicine) eye movement up and to the right
n
(pathology) An abnormal twisting to the right
n
(optics) Alternative form of spherical aberration [(optics) A type of lens aberration which causes blurriness, particularly away from the centre of the lens.]
n
(pathology) An ophthalmologic condition where one perceives two images; double vision.
v
To tear the periphery of the retina
n
A tear (rupture) near the periphery of the retina.
n
A disorder of vision in which a single object is seen as two.
n
(pathology) An involuntary downward movement of the eye
n
(uncountable) An eye disease caused by decreased tear production; short for dry eye syndrome.
n
A rare congenital eye disorder most commonly characterized by the inability of the eye to abduct, or move outwards.
n
Alternative form of Duane syndrome [A rare congenital eye disorder most commonly characterized by the inability of the eye to abduct, or move outwards.]
n
An eye movement involving only one eye.
adj
Exhibiting or relating to dyschromatopsia.
n
(medicine) Difficulty with copying figures.
n
An abnormality in the shape of the pupil of the eye
n
Any of the group of visual illusions involving an alteration in the size or separation of perceived objects.
n
Alternative form of dysopsia [dimness or difficulty of vision]
n
dimness or difficulty of vision
n
Obsolete form of dysopsia. [dimness or difficulty of vision]
n
(pathology) The presence of halos or glare (if positive) or shadows (if negative) in the field of view, typically experienced after cataract surgery
n
(medicine) A lateral displacement of the inner canthi of the eyes, giving the appearance of a widened nasal bridge, and associated with Waardenburg syndrome.
n
(medicine) Forced deviation of the eyes to one side, i.e. towards the side of a destructive lesion.
n
The displacement or malposition of the eye's lens from its normal location.
adj
Relating to ectropion.
n
A condition of loose eyelids, characterized by the turning outward of the lower eyelid.
n
The presence of a band of corneal opacity similar in appearance to the arcus senilis, sometimes seen in newborns.
n
A person with emmetropia, perfect vision.
n
The condition of perfect vision, where images are correctly brought to a focus on the retina.
n
Alternative form of emmetropization [The shift from hyperopia to emmetropia in infants]
n
The shift from hyperopia to emmetropia in infants
n
Alternative form of emmetropia [The condition of perfect vision, where images are correctly brought to a focus on the retina.]
n
(medicine, archaic) An ulcer in the eye, upon the cornea.
n
(medicine) A condition where the eyes are abnormally sunken into their sockets.
n
The posterior displacement of the eyeball within the orbit due to changes in the volume of the orbit (bone) relative to its contents (the eyeball and orbital fat), or loss of function of the orbitalis muscle.
n
(pathology) An inversion (turning inward) of the margin of the eyelid
n
Alternative form of entropion [(pathology) An inversion (turning inward) of the margin of the eyelid]
n
(medicine) Excessive tear production usually a result from an irritation of the eye.
n
(archaic, rare) Partial color blindness with ability to distinguish correctly only red and green.
n
An abnormality of vision causing objects to appear red.
n
(ophthalmology) Inward deviation of the eye usually due to extra-ocular muscle imbalance.
n
A person who has esophoria.
n
A person who has esotropia
n
A form of strabismus in which one or both eyes turn(s) inward.
n
Alternative form of esotropia [A form of strabismus in which one or both eyes turn(s) inward.]
n
(pathology) A condition in which the eyes are open abnormally wide.
n
(medicine) The condition of being properly placed, as opposed to ectopia.
n
(medicine) The condition of being turned outward.
v
(anatomy) To rotate the eye outward about the anteroposterior axis; to undergo or make undergo excycloduction; to extort.
n
(anatomy) Extorsion of the eye.
n
A cyclophoria characterised by a lateral rotation
n
The outward torsional movement of the eye, mediated by the inferior oblique muscle.
n
A cyclotropia characterised by a lateral rotation
n
rotation of the eyes away from each other
n
(ophthalmology) A form of heterophoria in which there is a tendency of the eyes to deviate outward.
n
A person who has exophoria.
n
(medicine) The protrusion of an eyeball so that the eyelids will not cover it, as a consequence of disease.
n
(medicine) hyperthyroidism accompanied by protrusion of the eyeballs
n
Alternative form of exophthalmic goiter [(medicine) hyperthyroidism accompanied by protrusion of the eyeballs]
n
(pathology) An abnormal protrusion of the eyeball from its socket.
n
Alternative form of exophthalmos [(pathology) An abnormal protrusion of the eyeball from its socket.]
n
(medicine) protrusion of the orbits of the eyes
n
The rotation of a limb away from the midline of the body
n
A person who has exotropia
n
(medicine) A form of strabismus in which the eyes deviate outwards.
adj
Suffering from or related to exotropia.
n
(medicine) An outward rotation of a limb, organ or part of the eye.
n
Alternative spelling of eyestrain [Tiredness or pain in the eyes, sometimes accompanied by headache, caused by excessive or improper use of the eyes, or by uncorrected defects of vision.]
n
Tiredness or pain in the eyes, sometimes accompanied by headache, caused by excessive or improper use of the eyes, or by uncorrected defects of vision.
n
The condition of prosopagnosia.
n
Alternative form of farsightedness [The condition of being unable to focus on near objects; presbyopia.]
adj
Unable to focus with one's eyes on near objects; presbyopic.
n
The condition of being unable to focus on near objects; presbyopia.
n
(medicine) A small, deep-centred ulcer of the transparent cornea.
n
Synonym of foveal avascular zone
n
migration towards the fovea
v
To migrate towards the fovea
n
(pathology) separation of the fovea from the retina
n
A phenomenon of visual perception caused by staring at a uniform field of colour, leading to a sensation of blindness and sometimes to hallucinations.
adj
Having or relating to gastroptosis.
n
(pathology) An eye disease or disorder that is defined as a characteristic optic neuropathy, or disease of the optic nerve, possibly, if untreated, leading to damage of the optic disc of the eye and resultant visual field loss due to lack of communication between the retina and the brain, which can lead to blindness.
adj
Characteristic of glaucoma and relating to the cyclitic membrane
adj
Having the nature of glaucoma.
adj
Relating to, or suffering from glaucoma
n
The presence of opaque specks in the lens in glaucoma.
n
(medicine) The condition of the eye being displaced outside of the orbital rim (eye socket).
n
(pathology) A disease of the eye associated with high internal pressure caused by developmental aberration of the anterior ocular segment
adj
(physiology) Unable to see the colour green because of an inability of the retinae to respond to that light of that colour.
n
Binocular single vision, as opposed to diplopia.
n
(medicine) The inability to see clearly in bright light; day blindness.
adj
(medicine) Unable to see clearly in bright light; day-blind; suffering from hemeralopia.
n
Partial achromatopsia, typically in only one eye
n
(pathology) Failure of development or formation on one side of the body
n
(medicine) One who has hemianopia; one who could only see half of their visual field.
n
(pathology) Blindness in one half of the field of vision of either or both eyes.
n
(anatomy) The splitting of the fibres of the optic nerve such that half of each of them continue to the contralateral optic tract
n
Alternative spelling of hemianopsia [(pathology) Blindness in one half of the field of vision of either or both eyes.]
n
Either half of a retina (either the nasal or the temporal hemiretinas)
n
(medicine) intraocular hemorrhage
n
(pathology) Latent strabismus, which occurs only during dissociation of the left eye and right eye, whereby fusion of the eyes is absent
n
stye, sty. An infection of a sebaceous gland of the eyelid. This is distinguished from a chalazion, which is not infected, but a cyst formed from an impacted meibomian gland of the eyelid.
n
Alternative form of Horner's syndrome [A disorder of the sympathetic nervous system, characterized by ptosis of the eyelid accompanied by miosis.]
n
A disorder of the sympathetic nervous system, characterized by ptosis of the eyelid accompanied by miosis.
n
A congenital form of glaucoma.
n
(ophthalmology) Dysmetria in which the patient tends to overshoot the intended target.
n
A person who has hypermetropia
n
An individual who has hypermetropia.
n
blurred vision due to hypermetropia
n
A farsighted person, a hyperopic person, a person with hyperopia.
n
(pathology) A disorder of the vision where the eye focusses images behind the retina instead of on it, so that distant objects can be seen better than near objects.
adj
Misconstruction of hyperopic. [Farsighted; of, having, or pertaining to hyperopia.]
n
physical misalignment of the two eyes so that one eye is set higher in the head than the other
n
(anatomy) An abnormally increased distance between two organs or body parts, usually the eyes
n
(pathology) A form of strabismus in which one eye points upward
n
(pathology) downward displacement of the eye in the orbit
n
(ophthalmology) Dysmetria in which the patient tends to undershoot the intended target.
n
physical misalignment of the two eyes so that one eye is set lower in the head than the other
n
A medical condition characterized by abnormally close eyes
n
strabismus in which the visual axis of one eye is lower than the fellow fixating eye
n
(dated, psychiatry, psychology) A symptom of conversion disorder where the patient is unable to see.
n
(obsolete) A person who is color blind
adj
(ophthalmology) Describing the eye tracking misalignment that is not dependent on direction of gaze; often used to describe strabismus
n
The inward torsional movement of the eye, mediated by the superior oblique muscle of the eye.
n
rotation of the eyes towards each other
n
(medicine) The inability to quickly adjust one’s focus when looking from near to far (or the converse).
n
(medicine) The turning downward of a part, especially of the eye.
n
(medicine) A medical sign indicative of a particular cause of extraocular muscle weakness, in which the affected eye shows impairment of adduction.
n
(medicine) Total or partial absence of the iris of the eye.
n
Alternative form of iridesis [(surgery) The ligature of a portion of the iris brought out through an incision in the cornea.]
n
paralysis of the iris of the eye
n
scotopic sensitivity syndrome
n
A test for red-green color blindness, using a number of colored plates (Ishihara plates), each of which contains a circle of dots of various colors and sizes. Depending on the person's vision, certain dots within the pattern will appear to form recognizable numbers or shapes.
n
Alternative form of isometropia [(medicine) The normal condition of having equal refractive power in each eye]
n
(medicine) The normal condition of having equal refractive power in each eye
n
(pathology) The presence of the same degree of myopia in the two eyes
n
The delusion of things being more beautiful than they are.
n
(medicine) A dark ring surrounding the iris of the eye, indicative of various liver diseases.
n
(medicine) An abnormal bulging of the cornea due to thinning and scarring.
n
(ophthalmology) A herniation of Descemet's membrane in the eye.
n
(pathology) A degenerative non-inflammatory disorder of the eye in which structural changes within the cornea cause it to thin and change to a more conical shape than its normal even curve
n
medical diagnostic imaging of the cornea
adj
Relating to keratophakia.
n
A keratic precipitate on corneal endothelium
n
(medicine) Rupture of the cornea.
n
The surface topography of skin and other tissue, but especially of the cornea
n
(ophthalmology) A corneal herniation accompanied by severe regular myopic astigmatism.
n
(dated) A chronic endemic disease of Japan, characterized by dimness of vision, diplopia, ptosis, and paralysis of certain muscles.
n
(medicine) A condition in which the top of the eye rotates to the left.
n
(medicine) eye movement down and to the left
n
(medicine) eye movement up and to the left
n
(pathology) A morbid condition in which the eye stands wide open, giving a peculiar staring appearance.
n
(optics) Deviation from the correct point of focus measured perpendicular to the axis.
n
(informal, pathology) amblyopia
n
A rare congenital anomaly of the eye, characterized by a conical protrusion on the crystalline lens capsule and the underlying cortex.
n
An eye condition resembling lenticonus but with a bulge that is spherical rather than conical.
n
(pathology) An opaque area or scar on the cornea of an eye
n
soreness of the eyes; blearedness
n
A condition of the eyes, typically in dogs, characterised by a protruding eye and excessively long eyelid
n
The condition of being macrophthalmous
n
(pathology) A disorder in which objects appear much larger than normal, most often the result of a neurological dysfunction.
n
A disease of the retina of the eye resulting in loss of central vision.
n
(pathology) Any disease of the macula of the eye.
n
A pupil of the eye that exhibits unusually little constriction when a bright light is swung from the unaffected eye to the affected eye. It can be caused by a lesion of the optic nerve.
n
A congenital form of color blindness found in parts of Micronesia.
adj
(of vision) used in low light levels
n
A visual distortion, associated with macular degeneration, in which a grid of straight lines appears wavy and parts of the grid may appear blank.
n
A congenital disease in which the pupils are narrower than 2 millimetres in diameter.
n
A congenital defect of the eye in which the cornea is less that about 10 mm in diameter
n
Abnormal small size of the lens of the eye.
n
(pathology) The presence of abnormally small eyes
n
A rare condition where the lens of the eye is abnormally small and spherical.
n
A person who has microstrabismus
n
(pathology) A disorder of the vision where focal lines are on both sides of the retina.
n
Alternative form of monoblepsis [(pathology) A defect of vision that is evident only if both eyes are open]
n
(pathology) A defect of vision that is evident only if both eyes are open
adj
Perceptive of only one color; unable to distinguish colors; total color blindness.
n
(pathology) The condition of being totally colour blind; achromatopsia
n
An eye condition in which the binocular vision is imperfect, defined by a small angle deviation with suppression of the deviated eye and binocular peripheral fusion.
n
(ophthalmology) A treatment for presbyopia in which one eye is treated to improve distance vision and the other eye is treated to improve close-up vision
n
(medicine) The condition of having abnormally large and dilated pupils due to illness or narcotics, particularly stimulants such as methamphetamine, cocaine, etc.
n
The perception of floaters in the vitreous humour.
n
(pathology) A disorder of the vision where distant objects appear blurred because the eye focuses their images in front of the retina instead of on it.
n
(very rare, archaic) A person who is myopic.
n
(medicine) The development of myopia.
n
(obsolete) A myope; a person who has myopia.
n
Alternative spelling of miosis [(rhetoric) Litotes; diminution.]
n
(pathology) Very severe microphthalmia
n
Alternative spelling of nearsightedness [The property of being nearsighted, myopia.]
n
(pathology) cloudy vision due to damage to the cornea
n
The optic condition nyctalopia, the inability to see clearly in faint light, as at night
n
Alternative form of night blindness [The optic condition nyctalopia, the inability to see clearly in faint light, as at night]
n
(medicine, uncountable) A genetic X-linked recessive disease that primarily affects the eye and leads to blindness.
n
(medicine) a cataract that affects just the dense inner part of the lens
n
(medicine) The inability to see clearly in dim light; night blindness
adj
(medicine) Resembling nystagmus.
n
(pathology) rapid involuntary eye movement, usually lateral
n
(medicine) Self-infliction of injury to the eye, especially enucleation.
n
oldsightedness; presbyopia
n
(medicine) A partial or complete paralysis of the extraocular muscles which are responsible for eye movements.
n
(pathology) pathology of the eyes
n
(ophthalmology) eye disease
n
Alternative form of ophthalmoplegia [(medicine) A complete paralysis of the extraocular muscles which are responsible for eye movements.]
n
(pathology) A sudden involuntary contraction of the eyeball
n
stenosis of an orbit of the eye
adj
(medicine) That has to do with the sense of touch in mouth.
n
The normal condition in which the tension of the extrinsic eye muscles is equal, the visual axes being therefore parallel
n
(medicine) normal vision; absence of visual disorder
n
The normal absence of heterotropia
n
A visual disturbance in which objects in the visual field appear to oscillate.
adj
(ophthalmology) Involving a focal point that falls behind the retina.
n
(medicine) Hyperabduction.
v
(ophthalmology) To adjust the focus of the eye so that the image resolves at a point behind the retina.
n
(ophthalmology) The improper adjustment of the eye muscles so that the focal point of a target image falls behind the retina.
adj
(optics) Having a focal point that is in front of the retina or observer; myopic.
n
Alternative form of palinopsia [A visual disturbance that causes images to persist to some extent even after their corresponding stimulus has left.]
n
A visual disturbance that causes images to persist to some extent even after their corresponding stimulus has left.
n
(medicine) winking of the eye
n
Partial colour blindness (a mild defect in colour vision)
n
Synonym of parachromatopsia
n
A region in the retina: part of the macula lutea that circumscribes the fovea and is circumscribed by the perifovea.
n
A group of abnormalities of eye movement and pupil dysfunction, caused by lesions of the upper brain stem.
n
A vision perception disorder in which objects appear closer than they actually are.
n
(pathology) The change in the eyelid and orbit following administration of some eye drops
n
Alternative form of phacoemulsification [(surgery) A form of cataract surgery in which the eye's internal lens is emulsified with an ultrasonic handpiece and aspirated from the eye. Aspirated fluids are replaced with irrigation of balanced salt solution, thus maintaining the anterior chamber, as well as cooling the handpiece.]
n
phantom pain and visual hallucinations after the removal of an eye
n
eye pain caused by bright light
n
(medicine, pathology) Photic sneeze reflex.
n
Any wasting or shrinking of another body part such as, for example, the eye (phthisis bulbi).
n
A yellow-white deposit on the conjunctiva of the eye, adjacent to the limbus, caused by exposure to ultraviolet.
n
A pathological condition of the eye, characterized by more than one pupillary opening in the iris.
n
(medicine) A condition in which multiple images of a single object are formed on the retina; multiple vision
n
(medicine) Exophthalmia.
n
(otolaryngology, pathology) Inability of the ears, due to aging, to perceive and focus on high-pitched sounds.
n
atrophy of the tissues of the larynx, typically as a result of age
n
(medicine) One who has presbyopia: a farsighted person
adj
Affected by or pertaining to presbyopia.
v
(ophthalmology) To displace (an eye) in its socket; to cause exophthalmus.
n
(psychiatry) A disorder of facial perception, in which the patient perceives people's faces as distorted, often with morbid affective features.
n
(medicine, informal) Argyll Robertson pupil, a characteristic sign in syphilitic eye disease.
n
A person who has protanomaly
n
A form of colour blindness causing a lower sensitivity to red light.
n
A person who has protanopia
adj
Exhibiting or relating to protanopia.
n
(medicine, dated) false sight; hallucination
n
The impression that the eye is sunken, caused by a narrow palpebral aperture.
n
The false appearance of esotropia.
n
(pathology) A form of exfoliation, especially in the eyes, in which the surface layer is not actually detached.
n
A condition similar to exophthalmos caused by facial asymmetry
n
(anatomy) An area of the retina in which an image is fixated (in a person with strabismus)
n
A depression in the epiretinal membrane at the fovea that does not make a complete hole in the membrane
n
(anatomy) Any condition such as telecanthus that resembles, but is not in fact, hypertelorism.
n
(medicine) Slow adducting saccades not secondary to medial longitudinal fasciculus dysfunction. Usually caused by ocular myasthenia gravis.
n
An intermittent and temporary shift in refraction of the eye towards myopia.
n
A mild asymmetry in spatial attention, displayed by neurologically normal individuals, in which the left side of space tends to be favoured, making leftward errors in line bisections as well as in the judgment of brightness, numerosity, and size quite common.
n
A condition resembling papilledema, such as optic disc drusen.
n
A vibration of the lens of the eye caused by movement of an implant
n
A person with pseudophakia
n
The substitution of the natural crystalline lens of the eye with a synthetic lens
n
Alternative form of pseudophacodonesis [A vibration of the lens of the eye caused by movement of an implant]
n
A congenital pit that develops in the optic nerve in the case of glaucoma
n
A pterygium formed by damage to the eye or by disease
n
(pathology) A ptosis-like presentation with intact levator palpebrae superioris function.
adj
(medicine) Characterised by pseudostrabismus.
n
The false appearance of strabismus, or crossed eyes.
n
(medicine) abnormal positioning of the head for ocular reasons
n
(medicine) psorophthalmia
n
(pathology) An abnormal mass of tissue in the corner of the eye that obstructs vision
adj
(medicine) Affected by ptosis.
n
(medicine) The prolapse of a bodily organ, especially drooping of the eyelid or the breasts.
adj
Of or pertaining to ptosis.
n
(medicine) The loss of vision in one or more quadrants of the field of view
adj
Afflicted with, or relating to, quadrantanopia.
n
(medicine) Alternative form of quadrantanopia [(medicine) The loss of vision in one or more quadrants of the field of view]
n
(medicine) Alternative form of quadrantanopsia [quadrantanopia]
n
an eye surgery procedure to correct myopia (near-sightedness) using a series of incisions in the cornea, radiating from a central point (hence radial).
n
computer vision syndrome
n
(medicine) A physical condition of the inner ear that leads to reduced tolerance of loudness, commonly occurring in those with hearing loss due to cochlear damage.
n
(pathology) is a problem with focusing light accurately on the retina due to the shape of the eye and or cornea The most common types of refractive error are near-sightedness, far-sightedness, astigmatism, and presbyopia.
n
Dispersion of light within the eye (leading to loss of focus), a typical symptom of cataracts.
n
(medicine) An eye disease characterized by the abnormal splitting of the retina's neurosensory layers, usually in the outer plexiform layer, sometimes resulting in partial loss of vision.
n
The spatial organization and mapping of the olfactory system
n
Initialism of radial keratotomy. [an eye surgery procedure to correct myopia (near-sightedness) using a series of incisions in the cornea, radiating from a central point (hence radial).]
n
The unilateral painless periorbital swelling associated with the acute stage of Chagas' disease.
adj
Associated with or accompanied by salivation
n
The presence of visible white space (sclera) above or below the iris of the human eye, traditionally supposed in China to indicate physical or mental imbalance.
n
(pathology) A morbid roughness of the inner surface of the eyelid.
n
(pathology, optometry) An opacity of the cornea that progresses inwards from the periphery of the cornea towards its center.
n
(ophthalmology) Inflammation of the sclera of the eye.
n
(pathology) A form of vertigo involving sudden dizziness, headache, and blurred vision
n
An area of impaired or lost vision within a field of vision otherwise in a good (or at least healthy) state.
n
(obsolete) dizziness with dimness of sight
n
The apparent reversal of presbyopia in an elderly person, caused by swelling of the lens of the eye.
n
shortsightedness, myopia
n
Myopia: impairment of vision's acuity for distant objects.
n
Alternative spelling of short-sightedness [Myopia: impairment of vision's acuity for distant objects.]
n
(pathology) A disorder of the vision where first focal line is on the retina, while the second is located behind the retina.
n
(pathology) A disorder of the vision where first focal line is in front of the retina, while the second is on the retina.
n
(neuroanatomy) The part of the brain involved with smelling.
n
A painful condition of the eyes caused by exposure of unprotected eyes to the ultraviolet (UV) rays in bright sunlight reflected from snow or ice.
n
Alternative spelling of snow blindness [A painful condition of the eyes caused by exposure of unprotected eyes to the ultraviolet (UV) rays in bright sunlight reflected from snow or ice.]
n
An abnormal condition where the lens of the eye is spherical.
n
(medicine) An abnormal protrusion of the uveal tissue through the eyeball.
n
An inherited disease characterised by macular degeneration leading to progressive loss of vision.
n
(optics) A defect in stereopsis
n
(uncountable) The inability to use stereopsis for depth perception.
n
(medicine) Normal eyesight, anastigmatic state
adj
Relating to strabismus.
n
A person who has strabismus.
n
(medicine) An inflammation of the eyelid.
n
(of an eye) A subconscious adaptation by a person's brain to eliminate the symptoms of disorders of binocular vision such as strabismus, convergence insufficiency and aniseikonia.
n
(medicine) elevation of the eyes; upward gaze
n
(medicine) A partial or complete adhesion of the eyelid to the eyeball.
n
(pathology) An eye condition in which the iris adheres either to the cornea (anterior synechia) or to the lens (posterior synechia).
n
(medicine) An obliteration of the pupil of the eye.
n
(medicine) Fusion of the eyes, as in cyclopia.
n
scintillating scotoma, a kind of visual aura preceding a migraine
n
A vision perception disorder in which objects appear much further away than they actually are.
n
(pathology) An ophthalmologic or neurologic condition where one perceives three images.
n
Clipping of tritanopia. [A form of color blindness in which the retina is deficient in or lacks cone cells containing opsins that respond to the color blue, resulting in an inability to distinguish blue from green.]
n
A rare form of colour blindness in which the short-wavelength pigment is shifted towards the green area of the spectrum.
n
A form of color blindness in which the retina is deficient in or lacks cone cells containing opsins that respond to the color blue, resulting in an inability to distinguish blue from green.
n
A visual defect of the eye; strabismus or squint.
n
A restricted field of vision as the result of looking through some type of object or a medical condition.
n
(medicine) The scientific study of blindness.
adj
(ophthalmology) Involving a focal point that falls short of the retina.
n
(ophthalmology) The improper adjustment of the eye muscles so that the focal point of a target image falls short of the retina.
n
(pathology) An involuntary upward movement of the eye
n
(medicine) A condition in which a person sees television-like static or noise in their field of vision, especially when against a dark background
n
Synonym of Jacobson's organ
adj
Suffering from exotropia.
n
color blindness in which red and green cannot be distinguished
n
A form of color blindness in which red cannot be distinguished from green, but only blue from yellow.
n
Alternative form of xanthocyanopia [color blindness in which red and green cannot be distinguished]
n
A visual defect, a form of chromatopsia in which everything appears yellow.
n
(medicine) ophthalmia caused by foreign matter in the eye
n
(medicine) Dryness of the eye.
n
(ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become dry. The condition starts with conjunctival xerosis and night blindness and progresses to corneal xerosis and, later, a severe condition called keratomalacia.
n
Alternative form of xerophthalmia [(ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become dry. The condition starts with conjunctival xerosis and night blindness and progresses to corneal xerosis and, later, a severe condition called keratomalacia.]
n
Alternative form of xerophthalmia [(ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become dry. The condition starts with conjunctival xerosis and night blindness and progresses to corneal xerosis and, later, a severe condition called keratomalacia.]
n
Alternative form of xerophthalmia [(ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become dry. The condition starts with conjunctival xerosis and night blindness and progresses to corneal xerosis and, later, a severe condition called keratomalacia.]
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