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Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi-focal lenses. Additionally, the ideal near-vision correction can be achieved with precision, because the variable lenses emulate the focusing action of the youthful (non-presbyopic) eye.
Adjustable-focus eyeglasses – Eyeglasses with manually adjustable focal length; Aphakia – Absence of the lens of the eye; Contact lens – Lenses placed on the eye's surface; Capsulorhexis – Tearing an opening in the lens capsule during cataract surgery; Cataract surgery – Removal of opacified lens from the eye
People who have a multifocal intraocular lens after their cataract is removed may be less likely to need additional glasses compared with people who have standard monofocal lenses. [2] People receiving multifocal lenses may experience more visual problems, such as glare or haloes (rings around lights), than with monofocal lenses.
The brand advises removing eyeglasses, contact lenses and false eyelashes before using the massager. The massager's 180 degree foldable, compact design makes it convenient for travel, and the ...
But the glasses themselves (which took around 10 days to arrive — your mileage may vary) are great; they're lightweight and comfortable, and Pair nailed my fairly complicated progressive-lens ...
Adjustable-focus eyeglasses might be used to replace bifocals or trifocals, or might be used to produce cheaper single-vision glasses (since they do not have to be custom-manufactured for every person). 1940s combined hearing aid glasses, on display at Thackray Museum of Medicine. [2]
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