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User Name Thread Name Subject Posted
Charmion BS: varifocal lenses (64* d) RE: BS: varifocal lenses 19 Nov 19


Yeah, Steve, but you can give yourself an almighty headache. Plus, as you say, kill someone with your bad driving.

There's also the problem that you may not be doing a good job with the whole seeing where you're going thing. Going arse over tip down the stairs because you missed the top step is a bad move at our age.

I'm blind in one eye and not too clever in the other. I had a torn retina (in the good eye, of course) repaired at 49, and cataract surgery at 60-ish. I am now 65.

I have two kinds of bifocals and I'm always wearing one or the other. My normal walking-around and driving specs have a reading lens on the bottom and a long-distance lens on top; I find that I need the reading lens even while driving so I can see the dashboard controls clearly. My other specs have a middle-distance lens on top and a reading lens on the bottom. I use those for the computer and for reading music. I also take them when I go to the library so I can read the book titles without having to cock my head at an intolerable angle.

Every optometrist and opthalmologist I have seen over the last 30 years (not a small number) has strongly advised me to avoid the "gradual" type of multi-focal lenses. The useful part of the lens is not terribly large, and my visual field is already severely limited. As the bluntest of the ODs put it, I need all the visual field I can get.

As for the coatings and fancy materials, I have never found anti-glare coatings make a damned bit of difference, but the fancy materials do. The high-density lenses that cost the earth make sense for people with severe myopia who would otherwise be peering at the world through the bottom of a Coke bottle, and massaging the dents in their noses left by the weight. I know, for I was one of those people for some forty years.


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