Thanks greatly for your help. I have definitely decided against the multifocal type of IOL. With a capable surgeon, the Crystal Lens should have a good chance of working well. I've heard that it is tricky to emplace and get the lens muscles to attach properly. In one forum I remember it stated that the Crystal lens is a 5mm diameter IOL, while the monofocals are 6mm. This, it was said, caused light to spill outside of the Crystal lens when the pupils were widened, and gave troublesome visual artifacts. Does the Crystal Lens HD, which I believe is the newest model, defeat these problems? Again, many thanks.
In my opinion, post RK patients can only have a monofocal or accommodating IOL such as the Crystalens. The cornea already has some multifocalty from the RK and adding a multifocal IOL will call additional visual disturbances.
The new Crystalens is similar to the AT50 except is is aspheric. This should give better night vision especially in someone with large pupils. The visual quality of my Crystalens AO is very good.
Dr. O.
I am a 60 yr. old who had RK 19 years ago. I will need cataract surgery in the left eye and want as clear distance and night vision as I can get afterwards. My surgeon says the right will probably show cataract problems before a year is out. I would like good intermediate vision but will wear progressive glasses as needed for reading.
In another thread you mentioned a new Crystal Lens coming out now. Is this better than the HD for my case? I've heard that with RK the Crystal Lens, as well as Restore have amplified visual artifact problems. I appreciate your opinion greatly.
Google positive dysphotopsia and also use the search function on this forum.
Dr. O.