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Xerophthalmia (from Ancient Greek xērós (ξηρός) meaning "dry" and ophthalmos (οφθαλμός) meaning "eye") is a medical condition in which the eye fails to produce tears. It may be caused by vitamin A deficiency, [1] which is sometimes used to describe that condition, although there may be other causes.
Dry eye syndrome can lead to blurred vision, instability of the tear film, increased risk of damage to the ocular surface such as scarring of the cornea, and changes in the eye including the neurosensory system. [2] [6] Dry eye occurs when either the eye does not produce enough tears or when the tears evaporate too quickly. [2]
Oculomotor apraxia (OMA) is the absence or defect of controlled, voluntary, and purposeful eye movement. [1] It was first described in 1952 by the American ophthalmologist David Glendenning Cogan. [2] People with this condition have difficulty moving their eyes horizontally and moving them quickly.
Family medical history FOH: Family ocular history F/U: Follow up appointment GH: General health G(M)P: General (medical) practitioner HA: Headaches HARC: Harmonious abnormal retinal correspondence HM: Hand motion vision – state distance Hx: History IOL: Intra-ocular lens IOP: Intra-ocular pressure ISNT: Inferior, Superior, Nasal, Temporal
of or pertaining to the (eye) Greek ὀφθαλμός (ophthalmós), the eye ophthalmology: opistho-back, behind, rear [8] Greek ὄπῐσθεν (ópisthen), behind, at the back opisthotonus-opsy: examination or inspection Greek ὄψῐς (ópsis), view biopsy, autopsy: optic(o)-of or relating to chemical properties of the eye
His life story is recounted in the new film “Sight,” which depicts how the Chinese immigrant survived his homeland's harsh Cultural Revolution to become a world renowned eye surgeon in the U.S.
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