Concord, California (PressExposure) July 14, 2009 -- When we get older, we feel that our eyesight has weakened now. We consult eye specialist and most of the time get prescription eyeglasses. Apart from prescription glasses, we are also suggested to use sunglasses which save our eyes from harsh sun and enhance our personality as well. If you find quite tough to manage time for eyeglass shopping then try online eyeglasses stores for wide ranges of eyeglass collection. Though, they have myriad varieties of eyeglass collection but they do provide customize designing facility for eyeglasses as well.
So, people very fondly purchases dozens of prescription eyeglasses and keep them in their stock. They prefer matching prescription eyeglasses with their designer fancy clothes. Since, it is mandatory to wear for improving the weak eyesight. Hence, todayâs experimental generation has taken it as privileges and evolved lots of colors, designs and materials. Amongst material the most crucial thing is the quality of lens. It must be the best in terms of absorbing ultraviolet rays. Used glass also should be scratch resistant. So, high-index plastic lens has been assumed perfect for the prescription eyeglasses.
If we use the term âhigh-index lensâ then it speaks about the lens which is thinner than the standard plastic. It is commonly known as CR39. In typical optics terminology, âhigh-indexâ is all about index of reference of particular lens material. According to the latest development in the optical science, 1.71 and 1.74 index lenses are the latest quality of high-index lens. Experts suggest that resin plastic helps in making the lightest lenses. But, it does not offer high-end protection against ultraviolet rays.
Often we have experienced that the eyeglasses are tinted with varieties of colors and shades. The key idea behind the tint is to reduce the glare of computer or television screen, and the glare of bright light from other sources. Basically, the eyeglasses are tinted for the comfort of eyes. Besides that, people use tinted glasses just for fashion. Eye specialist prescribes eyeglasses for improving your week eye condition. So, tinted layers on the eyeglasses or UV special protection layers on the eyeglasses will be an added advantage for your prescription glasses.