A tiny mechanism, actuated by the slider, simultaneously controls both flexible lenses to assure appropriate near vision tracking in both eyes.
12.
This is called " mix and match . " Distance vision is not compromised with this approach, while near vision is optimized.
13.
My near vision has gotten a little worse up here so you may have seen pics / video of me wearing glasses.
14.
In the 1950s, Loewenfeld distinguished between the two types of pupils by carefully observing the exact way in which the pupils constrict with near vision.
15.
This procedure involves inserting in one eye an intraocular lens that provides near vision and in the other eye an IOL that provides distance vision.
16.
If the wearer has little to no need for the correction of astigmatism, off-the-shelf glasses may work quite well for seeing better during near vision tasks.
17.
"We'll give you great distance vision but you'll lose near vision, and for a lot of older people who are active in sports that's a great tradeoff.
18.
It comes about as the lens loses its ability to accommodate or focus sharply for near vision, a loss of elasticity that is inevitable as we age.
19.
The lens preserves the patient's distance vision, while providing equivalent near vision correction, allowing the patient to focus on near objects without the aid of reading glasses.
20.
Both Lasik and PRK slightly reshape the surface of the eye, making it either flatter to improve distance vision or more steeply pitched to improve near vision.
