My ophthalmologist saw the pco starting and told me we would take care of it if and when my vision deteriorated. At my 6 months checkup we mutually agreed it was time. Halos from lights, loss of couple lines on eye chart. Was like cataract was back. It was really not a big deal to have it done, but no sense having it done with no symptoms. IMO of course.
I don't like to do a Yag Cap for PCO unless the person is symptomatic and has complaints. That is the way most ophthalmologists do it