I wonder how a person like me could actually get the posterior cloudiness (PCO), "secondary cataracts" without actually having cataracts in the first place? Isn't it caused by cells from the cataracts? Or is it actually a reaction to the IOL? I have read that Crystalens and other IOLs made of silicone have a very high incidence of PCO, something like 60%. Is this true?
When modern planned extracapsular cataract extraction by phacoemulsification (or in your case a clear lens exchange) is done the back wall (posterior capsule) is left in place to hold the implant and keep the vitreous out of the anterior chamber. Just beneath this membrane are cells that produce the lens fibers of the human eye.
When surgery is done a scraper or other instrument is used to try and remove all these cells. The reason is that if left they go on producing lens fibers which die (there is no longer a human lens) and cause the initially clear capsule to turn cloudy. The younger you are the higher the number of cells you have and the more likely you are to have posterior capsular opacification also called posterior capsular cataract. In congenital and juvenile cataract this occurs 100% of the time so a hole is almost always cut in the membrane to see through when that happens.
So in a sense you did not have a cataract before but now you may have a posterior capsular cataract.
The overall incidence of PCO is now about 25-33%. When implants were started by extracapsular extraction in the late 70's and early 80's the percentage was 90%+.
I have not commited a figure to memory about the incidence of PCO with Premium implants. You should be easily able to search that figure over the internet.
Thank you so much for all your replies -- it's so confusing and I'm scared to death of detached retina as I know what my mom, sister, and husband went through with them. (My husband ended up blind in that eye, but mom & sis had good results.)
I feel that I lost so much and gained nothing with the Crystalens. I know they say the close vision may come in better in time, but at almost 3 months, mine is still much worse in the first eye than before the surgery.
I'll be trying the opaque contact lenses in a couple days to see if that cuts down on the flare/glare edge problems I'm dealing with.
Copyright 1994-2016 MedHelp International. All rights reserved.
MedHelp is a division of Aptus Health.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.