Flashcards on Lens and Cataract

Here are flashcards about basic lens questions. Click on the cards for more information or if you’d like to leave a comment.

How are PCO cataracts removed?

PCO after cataracts are common and treated using a YAG laser to pop a hole through the capsule, thus clearing the visual axis.

What is more visually significant, an anterior or posterior located cataract?

Cataracts that are posterior are more visually significant. Seemingly small PSC cataracts can severely affect the vision.

What is PHACO?

This is phacoemulsification, the method the lens nucleus is removed with ultrasonic energy.

What layer of the lens is left behind with cataract surgery?

The outer capsule is left behind with cataract surgery. This creates a pocket in which to place the new implanted lens.

What holds the lens in place?

The lens is held in place by zonules, like springs on a trampoline.

What eyedrop medication is associated with cataract formation?

Long-term use of steroids is associated with premature cataract formation, usually a PSC at the back of the lens.

What is a NSC and who gets them?

A NSC is a nuclear sclerotic cataract. These cataracts are common and occur gradually with aging.

What is a PCO and who gets them?

A PCO is a posterior capsule opacification, an “after cataract” that can form months to years after successful cataract surgery.

What is a PSC and who gets them?

PSC stands for Posterior Subcapsular Cataract, an opacity that forms at the back of the lens. Common in diabetics and oral steroid users.

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