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Sunglasses with deep side arms can block side, or peripheral, vision and are not recommended for driving. Even though some of these glasses are proven good enough for driving at night, it is strongly recommended not to do so, due to the changes in a wide variety of light intensities, especially while using yellow tinted protection glasses.
Once adapted, FDA trials showed over 65% of patients achieved 20/20 eyesight and over 90% achieved 20/40 or better (the typical US requirement for driving without glasses). The corrective effect is stable but not permanent. Left to itself, the eye will slowly lose its adjusted shape, taking approximately 3 days to return to its former vision.
Night vision is the ability to see in low-light conditions, either naturally with scotopic vision or through a night-vision device. Night vision requires both sufficient spectral range and sufficient intensity range. Humans have poor night vision compared to many animals such as cats, dogs, foxes and rabbits, in part because the human eye lacks ...
We've rounded up our favorite styles for each face shape ... from heart-shaped gals to square-shaped ladies. Check out the slideshow below to find the perfect pair of sunglasses for your face type ...
Summer is here and it's finally time to update your sunglasses collection. If you want to pick up a new pair (or two) but don’t know where to start, check out our guide to which sunnies look the ...
Corrective lens. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye.
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