Saturday, July 11, 2009

Glasses that could expand vision in Retinitis Pigmentosa?

They are doing a study on glasses that could make patients see farther to the sides, so far this study is not including RP patients even though they think that it may help them also.
Years ago, a Dr Briewa ( very good eye doc ) had told me of glasses with prisms in them , and there are some on the market, I haven't heard from anyone who has actually tried them, if anyone out there has tried them , please email, comment , etc,, I will add to this post as I get more information,, here are some of the links and information that I have gotten so far -----------------------------------------------------------------------

CPF Corning lenses for Retinitis Pigmentosa

The May 2008 issue of the Archives of Opthalmology reported the findings of the 2004-2005 clinical trial testing these mobility aids; the "EP"-Horizontal, or the Peli Lens™. Entitled "Community-Based Trial of a Peripheral Prism Visual Field Expansion Device for Hemianopia," the findings reported 74% of subjects continued to wear the aids at the end of the study, and 47% were still wearing them at the 12 month follow-up


  1. Glasses with prism are used for people who have muscle imbalances NOT retinal problems.

  2. The Peli lenses are under trial for people who have the imbalance due to stroke etc, though it is hopeful that could lead to a use by people with RP, there have been some RP patients who have tried other prism glasses without total success. Dr Briewa had told me years ago about the prisms, though he did tell me at the time that I would have to go away from here for them. I am hoping that as so much time has passed, prisms could be a better possibility. They also make a type of glasses for people with only one eye, that has a prism to expand their side vision, not sure why this couldn't work with RP?


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