A: A secondary cataract, also known as a posterior capsule opacity (PCO), is a common condition that can occur after cataract surgery. Although it’s sometimes called a “secondary cataract” it’s not really a cataract. Once you have your cataract removed, it can never come back. Cataract removal surgery is very successful, but some patients who… Continue reading Q: I’m about to have cataract surgery and while doing research, I came across something about a secondary cataract. What is it and should I be worried about getting it?