Lens Flashcards
1
Q
Congenital abnormalities of the lens
A
Aphakia- lack of lens
Microphakia- to small lens
Spherophakia- spherical lens
Lenticonus- bulging, protrusion of the anterior or posterior pole of the lens.
Coloboma- missing part of the lens, usually notching of the equator.
Most of the congenital lens abnormalities is associated with multiple ocular defects as during embryonal development lens is a important ‘stimulus’ for the development of other parts of the eye.
2
Q
Aphakia
A
Abscence of the lens. Congenital associated with other ocular abnormalities (microphthalmia etc). Very rare.
Aphakia post-cataract surgery.
