Today the world has become computer oriented and studies have showed that more than 80% of the people use computers on regular basis. Problems like eyestrain, dry eyes, headaches, blurred vision and blazing are suffered by most of the people as they have to look at the flat computer screen for long hours. This vision problem is known as computer vision syndrome (CVS). Thus computer protective glasses are necessary for protecting you from CVS and improving your vision. This may be done with or without prescription. Computer glasses sometimes come with ultra violet rays protection coating and lessen the glare.
The most important problem that the computer users are facing today is that the distance between the computer screen and you is more than reading distant and it is closer than far vision. This problem can be faced by contact lens wearers as well as any other corrective glasses wearer. Bifocal lenses are not very suitable for computer users as the reading materials in a computer screen and laptop lies dull in front of them. Thus the people wearing bifocal lenses have to look up to read instructions and reading materials on the computer screen thus generating neck pain and shoulder pain. This might also result in your bending towards the computer screen in order to have a better vision by lessening the distance between them and the computer screen.
But if you do not spend a long time in front of the computer screen in order to develop problems like CVS then you can even go for non prescription glasses which have polarizes lenses and are protected from ultra violet rays of the sun. This helps in protecting your eyes from harmful radiations and glare. You can even take the help of your optician in order to make a pair of glasses most suitable for you or you may go for polarized sunglasses with 100% UV rays protection and are slightly tinted. The advanced sunglasses are available in most sports shop. Now if you want to go for computer glasses which can even act as sunglasses them a photo chromic lens would be appropriate for you. These lenses can be used for both indoor and outdoor purposes. Polarized sunglasses can even solve the need for flexible computer glasses. When buying a computer glass take care of the fact that it is fault free. Thus it is recommended to visit an optometrist in order to go through a computer test and get the best glasses for you.