Canadian Medical Guide > Diseases > Eye Diseases > Lens Diseases Terms and Definitions

Lens Diseases

Medical Definition:
Guide Notes:	GEN or unspecified only: prefer specifics
Previously Indexed:	Eye Diseases (1966-1977),Lens, Crystalline (1966-1977)

Lens Diseases Categories.

	Aphakia - Absence of crystalline lens totally or partially from field of vision, from any cause except after cataract extraction. Aphakia is mainly congenital or as result of LENS DISLOCATION AND SUBLUXATION.
	Cataract - Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed)
	Lens Subluxation - Incomplete rupture of the zonule with the displaced lens remaining behind the pupil. In dislocation, or complete rupture, the lens is displaced forward into the anterior chamber or backward into the vitreous body. When congenital, this condition is known as ECTOPIA LENTIS.

Lens Diseases Medical Definitions and Terms

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