Easing Eye Strain with the Right Lenses (2012)

Re:Easing Eye Strain with the Right Lenses (2012) by mixmastamyk on Sunday October 01, 2017 @03:12AM (#15376771)

Thanks, the same happened to me but had no idea what I was doing. Tried the bifocal progressives and the top half was fine but bottom was like looking though coke bottles. Had to move my head constantly to get text centered. Constant movement and fishbowl effect drove me nuts. Thought they were defective.

Returned them for one computer set and one driving (closeup fine) and they work well, but up until now thought they or I did something wrong.

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Re:Easing Eye Strain with the Right Lenses (2012) by jasode on Sunday October 01, 2017 @05:45AM (#15377064)

>but bottom was like looking though coke bottles.

Yes, exactly! Many others have the same issues and describe it in similar ways: "tunnel vision", or "looking through a pinhole"

It's very strange that optometrists & opticians don't explicitly explain this trade-off upfront: the "convenience" of progressive bifocals and the "fashion" of hi-index lenses will always be blurrier away from the center point than single vision lenses. If customers were properly educated ahead of time by the opticians, they wouldn't think progressives and hi-index were "defective". The lenses are not defective -- it's actually an unavoidable optical tradeoff! Your eyes just happen to be sensitive to it.

Some people adjust to progressives or high-index lenses just fine. Others don't. I tried them for 3 weeks as they recommended and never got used to them.

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Re:Easing Eye Strain with the Right Lenses (2012) by mixmastamyk on Sunday October 01, 2017 @01:22PM (#15378779)

Right, for me the sensitivity came from moving between monitors.

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