Negative Dysphotopsia with Crystalens HD

[jump007]

Negative Dysphotopsia with Crystalens HD

I had IOL HD500 implant on 24th of March of my left eye. It appeared to be successful, but no I see a very disturbing arch on the left side (dark shadow towards the ear). I contacted my Dr. , he took notes of my complaints, but did not find anything unusual. I contacted Bausch & Lomb. According to them they have never heard about this phenomenon. Controversy to other reports, the dark arch disappears when the pupil is diluted.

I get my right eye don e tomorrow (same lens with same specification). I am now afraid that the same may occure with my right eye.

What are my options?

[gixxerjohn]

By accident I noticed if i wear safetey glasses (clear) wrap around with no frames. The effect almost goes away completely. or at leaste decreases. Try that. I do not wear glasses (normally).

[gixxerjohn]

Mine seems to be a little more severe than most discussed here. I noticed it within 48 hours and was alarmed by the lack of improvement. after 10 days. Its very into my field of vision with the wiggly effect actually reaching center at times. Only during the day though.  at night when pupils are larger symtoms lesson. I am still hopeful will improve on its own or a easy solution is available. Does anyone know if they can be moved or are they self centering and conrolled by eye structure.

[peakhope]

The study I mentioned (15% of patients experience negative dysphotopsia) was not specific to Crystalens. It apparently applies to all lens types. Sorry I didn't bookmark the study. I'm pretty sure I found it by searching for "negative dysphotopsia" on yahoo search (which I prefer to google). Probably not one of the first 10 hits, but probably within the first three pages. If you add the word "study" it might narrow it down.

My sense was that almost no patients would report ND on their own, but if you ask them about it, many will suddenly see it.

I have certainly noticed mine a lot more after all this discussion. It's still minor, and I'm sure I'll ignore it in time. It's in my eye that still has stitches, so I expect vision in that eye to change in various ways, still.

[mmmmpppp]

Hi Peakhope,

You quote a study on the Crystalens HD.  I have seen other quotes of studies but have not been able to find actual studies.  Can you point me to some?  I am also considering the Technis multifocal and love the Summary of Safety and Effectiveness on it from the FDA.  Wish I could find the FDA study on the Crystalens HD.

Thanks.

Michael

[gixxerjohn]

If you happened to come across this forum and now you see it. Its probably very subtle and your right, bad reading. If you came across this forum because it is very dark and into your field of vision, and your doctor shrugged his shoulders and you found it by doing  a search. Then I think  its good reading. I wanted the newest technology in my eye with the best possable outcome (no glasses). There is a certain risk associated with that. It appears to be a very rare side effect and even after reading this forum I would have opted for the same procedure with the hope of perfection. If no one is aware of this condition that creeps up in a very rare amount of people, it will continue. The next generation may lesson the likelyhood of this condition or maybe a predictor of who will be effected by this condition will be noted.  

[jump007]

When my eyes are dilated, no effect of photopsia. My conclusion, as the iris constricts, less light gets in, but the light gets more to the edges of the lens.

Some Drs apply one drop of Atropine. Atropine blocks the receptors in the muscles of the eye (muscarinic receptors). These receptors are involved in controlling the pupil size and the shape of the lens. One drop will keep blovking for about 5-6 days. During this time no iris constriction and no accommodation.

That is when I started to notice the edges of the lens. I thought the lens had dislocated. My Dr check (need to dilate), no photopsia until the dilation wore out.

I can actually see images beyond the edges (blurred). My vision is like locking through glasses where I can see the rims.

I probably will live with it. However, I am still trying to get some feedback from B&L