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Sunday 7 July 2013

The rising ophthalmic problems in youngsters and children have caused deep concerns health wise. The overexposure to computer screens, cellular games and other multimedia has caused the relatively young children to fall prey to issues of near and far sightedness. Vista Eye along with their ophthalmologists has always recommended a number of precautions to be taken to protect your eyes before and after such conditions.
Anti Reflective Coating of the eye glasses is one of such measure which avoids the discrepancy of back glare which is a common problem of prescription glasses and sunglasses. The light hits the back of the lens and bounces into the eyes. Hence the purpose of these anti reflective glasses is to keep the glare of these reflections away from the eye and minimize the damage caused due to its exposure.
At Vista Eye we believe in providing products which safeguard the interests of our customers hence we always recommend your glasses to have an anti reflective coating on it. These anti reflective coated glasses provide benefits when driving and when viewing the computer screen for long hours. Anti reflective coatings is a good idea especially for sunglasses as it eliminates the glare from the sun avoiding the reflection in your eyes from the back surface of the tinted lenses when the sunlight is behind you.
The anti reflective coating is made up of a very hard thin film that has an index of refraction that is somewhere between air and glass. The above science helps the reflection from both the inner and outer surfaces to be the same. If applied at a distance of a quarter of the lights wavelength, the two reflections from each side of the film cancel each other hence minimizing the glare you see.
Similarly experts at Vista Eye advice proper care of the AR glasses. Harsh cleaners and chemicals must be avoided for they may damage the anti reflective coating.

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