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a thing seen.
far sight hyperopia.
near sight myopia.
night sight hemeralopia.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


The ability or faculty of seeing.
See also: vision.
[A.S. gesihth]
Farlex Partner Medical Dictionary © Farlex 2012


The ability or faculty of seeing.
See also: vision
[A.S. gesihth]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


The special sense by which the colour, form, position, shape, etc. of objects is perceived when light from these objects impinges upon the retina of the eye.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

Patient discussion about sight

Q. What age does eye sight stabilizes? I was just wondering at what age does your eye sight usually level off and stop getting worse? Any ideas much appreciated!

A. It will stabilize in a few years-age of 26-27.That is the average age people perform lasik surgery.
It is also the age the eye is fully grown.
Don't worry it will not get much worse maybe about -0,75.
Take care

Q. What can you do to make your eye sight better? My eye sight isn’t that great. Is there anyway to improve it, like eating certain foods or drinking certain drinks?

A. There is something called the Bates Method. It is a combination of relaxation and exercises with the eyes. Depending on the problems you have with your eyes it may help. Do an internet search on Bates Method and you will get some info on it and a couple years ago I actually found a place I downloaded a description of some of the exercises.

Q. My vision is blurry and I see zigzag lines, what is it from? Every now and again, usually after sitting a few hours in front of the computer or not sleeping enough at night, I start getting blurry vision. I see zigzag lines in front of my eyes and it can take sometimes an hour to go away. What is this from?

A. It sounds like you have a migraine. A migraine that comes with blurry vision and zigzags (an aura) is called a classic migraine. The aura of migraine typically lasts from 20 minutes to an hour. Some patients have prolonged aura symptoms that can last hours to days. The aura also typically ends before the headache itself begins. When migraine aura symptoms are prolonged or last into or through the headache phase these types of migraine are commonly referred to as complicated migraines.

More discussions about sight
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References in periodicals archive ?
Look at a bore sighter while turning them to check for that problem.
After landing a Champion Stakes heat he ran weagain when eliminated the semi-final stage, and 33.73sec (+20) trial sighter here during the week can improved upon even if it may not need to be.
Although he would appear a little tetchy on that evidence, Another Cocktail is clearly talented and will be raring to go here with that sighter in the bag.
After the seventh sighter, the shooters are given a minute to see the plug for their last shot.
In all probability O'Brien will have bigger guns to fire at the premier Classic in June, but this 10-furlong conditions event will give him a sighter.
Now six and clearly better for a sighter at Ascot, the 16-1 chance came with a strong late run under Martin Dwyer to beat Class Is Class and Principal Role by two heads.
With that encouraging sighter in the bag, connections will no doubt be quietly thinking about Cheltenham next March.
A flop with the ladies in the paddocks, he returned to the track in the care of Sir Michael Stoute and after a sighter at Royal Ascot, Kingsgate proved he was no spent force when scoring impressively over five furlongs at Glorious Goodwood.
Both sides rested players ahead of the play-offs, but Dale had an early sighter when Will Buckley twice went close.
Champion trainer Paul Nicholls is likely to see this Becher Chase as an ideal sighter for the world's greatest steeplechase in April.
The visitors' Steve Howard fired an early sighter over the bar before Jon Stead had an effort blocked by Foster.
Scott Murray fired an early sighter for the visitors in the second period - which Smith held - before Commons was denied by Basso.