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Medical Forum / General / Vision / October 2006My computer screen curves towards me!!
I just a new pair of glasses with hi-index multi-coated polycarbonate lenses. When I look at my computer screen, the center bulges out towards me and when I look at the floor below me, it seems to curve upwards to the front. I have no such problems with my old glasses. My optician tells me that it is because of the new frame which is more curved(wraparound) than my previous one. He says that my brain will compensate for it eventually. I have been wearing them for a week without any change in the distortion. What should I do? P.S This is a new optician for me. possibly you've had a prescription change (change in astigmatism or significant increase lens power in one eye). such changes readily cause a temporary change in spatial perception which passes as you become adjusted to the new proper prescription. if you really have been wearing the glasses for a week, and are not periodically going back to your old pair (important!!. you will have trouble adjusting if you keep going back to your old specs), then I would take them back to where you got them to have things checked out. possible they are made inproperly or the original prescription is off. ---------------- > I just a new pair of glasses with hi-index multi-coated polycarbonate > lenses. When I look at my computer screen, the center bulges out [quoted text clipped - 6 lines] > > P.S This is a new optician for me. This could be due to an excessive astigmatism "correction". You could ask the new optician if you could have the "astigmatism-cut" reduced. Or just go back to your previous prescription. Best, Otis > I just a new pair of glasses with hi-index multi-coated polycarbonate > lenses. When I look at my computer screen, the center bulges out [quoted text clipped - 6 lines] > > P.S This is a new optician for me. He had increased the astigmatism correction initially but had cut it back to my original prescription after I complained about the distortion. However, even with this new pair of lenses, the problem persists. > This could be due to an excessive astigmatism "correction". > [quoted text clipped - 17 lines] > > > > P.S This is a new optician for me. Polycarbonate eyeglass lenses have been around for about thirty years, and every few years they seem to get a little better. While that is a good thing, the bottom line is that the old standard for superior vision is CR-39. When a patient is sensitive to perpheral distortion, and has worn a pair of well-made good old fashioned CR-39 lenses, he virtually always hates his new poly lenses. The good news about poly is that you can shoot it with a 22mm caliber bullet and it won't shatter. It has been the material that airplane windows are made of for decades. But...just think about it....have you ever looked out an airplane window what didn't drop off in quality as you looked out towards the edge? Enough said. > He had increased the astigmatism correction initially but had cut it > back to my original prescription after I complained about the [quoted text clipped - 22 lines] > > > > > > P.S This is a new optician for me. P.S. Poly lenses and high index lenses are often cut on flatter front-surface curves, to hide the thickness of the lens. Sometimes the flatness of the lens will bother you more than just the poly. You need an optician who studies and solves problems so you don't have to. > Polycarbonate eyeglass lenses have been around for about thirty years, > and every few years they seem to get a little better. While that is a [quoted text clipped - 33 lines] > > > > > > > > P.S This is a new optician for me. "otisbrown@pa.net" <otisbrown@pa.net> wrote in news:1160145524.385731.72690 @b28g2000cwb.googlegroups.com: > This could be due to an excessive astigmatism "correction". Please disregard Otis's postings. He is not in the medical profession nor in any position to give medical advice such as above. Thank you! Allen > I just a new pair of glasses with hi-index multi-coated polycarbonate > lenses. When I look at my computer screen, the center bulges out [quoted text clipped - 6 lines] > > P.S This is a new optician for me. High index has chromatic distortions. If you arent vain about the slight increase in thickness, you dont need high index, especially if your prescription is below -10. |
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