Highlights

Wednesday, September 1, 2010

Cataract Zoo 5: Anterior Polar Cataract (with Iris Strands)

This is an interesting one!

This is a contact lens patient of mine - an incidental finding. She is moderately myopic (-7.00) and does well in SiHy lenses. She also has some WWP (white without pressure) in her retinal mid-periphery, which looks like a flying lizard. Cool!


Iris Strands linking the iris collarrette to the site of the Anterior Polar Cataract.


Dr Google helped me discover this in the text book "Pediatric Ophthalmology and Strabismus": (Kenneth Weston Wright; Peter H. Spiegel). They describe this as a small discrete opacity usually less than 3mm in diameter, usually in the centre and on the anterior capsule of the lens, not usually visually significant and not progressive.
It is caused by and abnormal separation of the lens vesicle from the surface ectoderm during embryonic lens development.
It is Bilateral in about 1/3 of cases; about 1/3 of patients will also have STRABISMUS, ANISOMETROPIA or AMBLYOPIA.
It is exhibits autosomal dominance in about 10% of cases.

Ddx: Peters anomaly - adheres to the cornea; abnormal angle; glaucoma risk.



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