farsightedness after cataract surgery

hi , my father underwent cataract surgery(phacoemulsification) 6 weeks bck in lt eye,rt eye is a non functional eye due to retina detachment 20 yeaesrs back. after 4 weeks of surgery , he was prescibed glasses   as -.75 (spherical), -1.25 (cylendrical) and+2.25  for near vision. he was able to read newspaper etc  with this presription. however after 2 weeks , since last 1 day he is not able to read newspaper with his glasses. letters are blurred , however his distant vision is fine , corrected  to 6/ 8.5 with glasses. what cld be the cause for sudden change in his near vision. also to add that he had cryo dn in lt eye  20 years back, however retina at time of operation was strong with no other weak region. pls help me? what could be the cause as its the only working eye. waiting for a reply soon
thanx

[John C Hagan III, MD, FACS, FAAO]

THIS IS NOT THE PLACE TO BE LOOKING FOR POSSIBLE CAUSES. Since its his only good eye and its changed call his surgeon and try and get him in today for an emergency visit.

JCH MD

[jags891]

sir, thanks for your reply.i did contact the surgeon back. he has diagnosed anterior capsular contracture as the cause for mild haziness and difficulty in near vision. has done yag laser capsulotomy today. is this because of negligence on the part of surgeon or its an unavoidable complication?. he said its common in 30 to 40 % patients post cataract.is it so?  and can u tell me will this help him now. sorry sir for bothering u again , bt being a precious eye , i am nervous and scared .pls reply if possible

[John C Hagan III, MD, FACS, FAAO]

anterior and posterior capsular contraction and opacification are a normal and unavoidable part of cataract/IOL surgery.  Yesterday I did 7 laser treatments for people with these problems, some of whom I operated on and some other surgeons.

Newer techniques and IOL design has reduced the risk of this problem from 90%+ in the early 80s to about 25-30% now.

JCH MD