What is posterior lens capsule opacification (PCO)?

Posterior capsule opacification (PCO) is a complication that can occur sometime after cataract surgery. It is fairly common; 10 per cent of people will develop PCO within two years of having cataract surgery. PCO can cause vision to become cloudy again. 
 
The vision problems caused by PCO can make it seem as though your cataract has returned, but it can be easily treated with a quick, painless, outpatient laser procedure to make vision clear again. Once you have had the laser treatment, PCO doesn’t normally cause any long-term problems with your sight.

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