Ologies and Isms :: Eas-Fin

Eyes Definition, Prefix, Suffix, Ologies and Isms, Eyes Information and Meaning

achromatopsy, achromatopsia: color blindness. Also called acritochromacy.
acyanoblepsia: a form of color blindness characterized by the inability to see blue.
aniseikonia, anisoconia: a defect of the eyesight in which the images on the retinas are different in size. —aniseikonic, adj.
anisometropia: a defect of the eyesight in which each eye has a different power to refract light. Cf. isometropia. —anisometropic, adj.
astigmatism: a defect in a lens, eye, or mirror that causes rays from one direction not to focus at one point. —astigmatic, adj.
blepharism: twitching of the eyelids.
blepharitis: soreness or inflammation of the eyelids.
blepharoptosis: Pathology. a drooping of the upper eyelid.
collyrium: an eyewash or other liquid preparation for the eyes. See also REMEDIES.
conjunctivitis: inflammation of the conjunctiva.
Daltonism: red-green color blindness.
deuteranopia: a defect of the eyesight in which the retina does not respond to green. —deuteranope, n. —deuteranopic, adj.
dichromation: a form of color blindness in which the sufferer can perceive only two of the three primary colors.
dioptometer: an instrument for measuring the refractive index of the lens of the eye.
dyschromatopsia: color blindness.
emmetropia, emmetropy: the normal refractive function of the eye in which light is focused exactly on the retina with the eye relaxed. —emmetropic, adj.
esotropia: a condition of the eyes in which while one eye focuses on the object viewed the other eye turns inward; cross-eye.
glaucoma: a disease of the eyes, in which the pressure inside the eyeball increases, often resulting in blindness. —glaucomatous, adj.
hemeralopia: a condition of the eyes in which the sufferer can see clearly at night but has impaired vision during the day; day blindness.
hypermetropia: the condition of farsightedness. Also called hyperopia. —hypermetropic, adj.
hyperopia: hypermetropia. —hyperopic, adj.
iridotomy: Surgery. the making of an artificial pupil in the eye by transverse division of iris fibers.
isometropia: the state or quality of the eyes being equal in refraction. Cf. anisometropia.
keratitis: an inflamed condition of the cornea.
keratoplasty: the surgical process of corneal grafting.
keratotomy: the process of surgical incision of the cornea.
lacrymatory, lachrimatory: a lacrymal vase or small vessel for storing shed tears.
Iagophthalmia, lagophthalmus: a persistent, abnormal retraction of the eyelid so that the eyeball is not covered during sleep. —lagophthalmic, adj.
leucoscope: an instrument for testing the eyes to determine the ability to distinguish variations in color or intensity of light.
leucosis: the development of leucoma, a whitish clouding of the cornea caused by ulceration.
lippitude: soreness of the eyes; a bleary-eyed condition.
macrography: study or examination of an object with the naked eye as contrasted with examination under the microscope.
megalopsia: a defect of the eyesight in which what is viewed is greatly magnified.
melanosity: darkness or blackness of eyes, hair, or complexion.
miosis, myosis: abnormal constriction of the pupil of the eye, caused by drugs or illness. Cf. mydriasis. —miotic, myotic, adj.
monoblepsia, monoblepsis: a defect of the eyesight in which vision is best when only one eye is open.
monochromation: a defect in which the retina cannot perceive color.
mydriasis: abnormal dilatation of the pupil, the result of disease or the use of certain drugs. Cf. miosis. —mydriatic, adj.
myopia: the condition of nearsightedness. —myopic, adj.
myosis: miosis. —myotic, adj.
nauscopy: the ability, sometimes pretended, to sight ships or land at great distances.
nictitation, nictation: the process of winking or blinking rapidly, as in certain birds or animals or as the result of a tic in humans.
nyctalopia: a condition of the eyes in which the sufferer can see clearly during the day or in bright light but has impaired vision at night or in poor light; night blindness.
nystagmus: uncontrollable and rapid movement of the eyeball in any direction. —nystagmic, adj.
oculist: a physician who specializes in ophthalmology.
ommatophobia: an abnormal fear of eyes.
ophthalmology: the branch of medical science that studies the eyes, their diseases and defects. —ophthalmologist, n. —ophthalmologic, ophthalmological, adj.
optician: a person who makes and sells glasses according to prescriptions prepared by an oculist or optometrist.
optogram: an image on the retina caused by bleaching of the pupils.
optography: the act or practice of reproducing optograms.
optology: Archaic. the testing of the eyes for lenses.
optometry: the practice or profession of testing eyes for defects in vision and the prescribing of corrective glasses. —optometrist, n. —optometrical, adj.
optotype: type used in the testing of eyesight.
orthoptics: the art of treating visual defects by exercise and retraining in Visual habits. —orthoptist, n. —orthoptic, adj.
oxyopia, oxyopy: an extremely heightened acuteness of the eyesight, resulting from increased sensibility of the retina.
phantasmascope, phantascope: an optical device that enables the viewer to converge the optical axes of the eyes and experience some of the phenomena of binocular vision.
photalgia: pain in the eyes caused by light.
photangiophobia: an abnormal fear of photalgia.
photopia: vision, or the ability to see in bright light. Cf. scotopia. —photopic, adj.
polyopia, polyopsia, polyopsy, polyopy: multiple vision; the seeing of one object as more than one.
presbytism: a form of farsightedness that occurs in old age. Also called presbyopia, presbytia. Cf. hypermetropia. —presbytic, adj.
protanopia: a defect of the eyesight in which the retina does not respond to red. —protanope, n. —protanopic, adj.
retinoscopy: a method of determining the refractive error of an eye using an ophthalmoscope to illuminate the retina through the lens of the eye. Also called skiascopy. —retinoscopist, n.
scotopia: vision in dim light or darkness. Cf. photopia. —scotopic, adj.
strabism: the inability of both eyes to focus on one object thereby producing the effect of squinting or cross-eyes. Also called strabismus. —strabismal, strabismic, adj.
synechia: a diseased condition characterized by adhesion, especially the adhesion of the iris to the cornea.
trachoma: a contagious form of conjunctivitis, with the formation of inflammatory granules on the inner surface of the eyelid. —trachomatous, adj.
trichiasis: a condition in which the hair, especially of the eyelashes, grows inward.
tritanopia: a defect of the eyesight in which the retina does not respond to blue and yellow. —tritanope, n. —tritanopic, adj.
uveitis: an inflamed condition of the uvea. —uveitic, adj.
xanthocyanopsy, xanthocyanopy: a form of color blindness in which only yellows and blue can be perceived.
xerophthalmia, xerophthalmy: a form of conjunctivitis, the result of a deficiency of vitamin A, marked by a dry and dull condition of the eyeball. Also called xeroma.
xerosis: abnormal dryness, as of the eyes or skin. Also called xeransis. —xerotic, adj.

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