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Amblyopia
Loss of vision in one or both eyes caused by conditions that impair the normal visual input during the period of development of vision.
Anisocoria
Pupils that are different sizes.
Anisometropia
A condition in which the two eyes have markedly different refractive powers.
Astigmatism
A refractive error caused by an abnormality in the curvature of the cornea and/or the lens.
Binocular
Relating to the use of both eyes.
Blepharitis
Inflammation of the eyelids.
Cataract
An opacity in the lens of the eye.
Chalazion
Cystic mass located at or near the lid margin caused by the blockage of the ducts of the Meibomian glands.
Conjunctivitis
Inflammation of the membrane (conjunctiva) covering the inner part of the eyelids and the white part of the eye (sclera). Also called pink eye.
Contact Lens
A plastic lens that fits on the surface of the cornea and provides focusing power for the eye.
Cross eyed
Estropia.
Esotropia
A type of strabismus in which one or both eyes turn inward. It can be intermittent or constant.
Exotropia
A type of strabismus in which one or both eyes turn outward. It can be intermittent or constant.
Hordeolum
Blockage of a gland of Zeiss or Moll causing a small inflamed cyst at the lid margin.
Hypertropia
Strabismus in which the eyes are misaligned in the vertical plane. Refers to the higher eye.
Hypotropia
Strabismus in which the eyes are misaligned in the vertical plane. Refers to the lower eye.
Intraocular lens
A plastic lens placed inside the eye to provide focusing power for the eye. Generally inserted after the removal of the natural lens of the eye.
Iritis
Inflammation of the iris causing light sensitivity, photophobia, redness and eye pain.
Lazy eye
Lay term used to refer to amblyopia, strabismus or ptosis.
Myopia
Refractive error in which the uncorrected vision is better at near than it is at distance. Also called nearsighted.
Nystagmus
A rapid involuntary oscillation of the eyes. Can be side to side, up and down or rotary.
Pseudostrabismus
A false appearance of eye misalignment
Ptosis
A drooping of one or both eyelids
Stye
Hordeolum or a chalaizon.