Posterior capsule clouding, also known as posterior capsule opacification (PCO), is a common late complication after cataract surgery. It occurs when the thin membrane behind the lens implant becomes hazy.
Why It Happens
Residual lens cells left behind at surgery can grow and migrate across the capsule, forming a cloudy layer. This scatters light in a similar way to the original cataract.
- Symptoms include blurred vision, glare, and reduced contrast
- PCO may develop months or years after surgery
- It is not a ‘re-growth’ of the cataract but a membrane change
Treatment
PCO is usually treated with a quick outpatient YAG laser capsulotomy, which creates a small opening in the cloudy capsule. This allows light to pass freely again and often restores vision rapidly.
Further Information
The Blue Fin Vision® blog article on blurred vision after cataract surgery explains how PCO is identified and managed.
