distance vision


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distance vision

the ability to see objects clearly from a distance, usually from 20 feet (6 m) or more.
References in periodicals archive ?
For distance vision, spectacles alone provided sufficient improvement for 33.
Multifocal lenses have several corrective regions on the lens, which correct near, intermediate and distance vision.
The small sweet spot through which I got best distance vision was located so that I saw best at a distance with my head tilted slightly back; to see closer up, I had to tilt further, and in order to scan a normal sized page of print, I had to move my entire head, not just my eyes.
The lens appeared to maintain distance vision while enhancing near vision.
Their average age was 76, and they entered with best-corrected distance vision between 20/80 and 20/800.
That eye can then see close up things better, while the other retains its distance vision.
Grabow, who has been working with the lenses since 2001, calls the technology promising: "Our data on our patients was consistent with national data, that 90 percent were able to go without glasses for near and far distance vision.
For improving distance vision, doctors may prescribe bi-optic telescopes, which are simply small telescopes attached to eyeglasses.
So when people look downwards and make the transition from the distance vision part of the lens to the near vision part, there's a sudden change in magnification and the image tends to jump,' Miller says.
The birds have their sharpest distance vision at 40 degrees off-center.
Unfortunately, the glasses that assist your near vision will blur your distance vision.
Myopia or nearsightedness--An eye that is longer than normal makes distance vision blurry.

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