While shopping for a pair of prescription eyeglasses at a local store or over the Internet, most people would firstly remind the optician of precise lens fitting according to the submitted prescription. This is generally the most important task since Rx eyeglasses are firstly expected to offer proper vision aid. But after having this point checked, there are some extra tasks that should be done. For instance, every patient would be asked to select a favorable frame in specific size, shape and color. These are nearly all parameters of the frame. It seems like that the lenses are completely beyond control, except for the determined power or powers. Today, most customers will buy complete pairs of lens eyeglasses with a frame and two lenses. Yet the fact is that there are also some optional points about the lenses. It is possible for regular eyewear users to get extra benefit from two generic types of lens coatings.
Scratch-resistant coating is probably the most popular lens coating and it can be beneficial to every glass user. On one hand, no glass or plastic lenses are born with the ability of scratch resistance. On the other hand, no eyewear user can ensure that the glasses will be under complete protection and be free from dropping onto the floor, or cleaning with a paper towel occasionally. Any mishap to the fragile lenses may lead to a scratch, which will certain affect the wearer’s vision. Lens eyeglasses with a built-in scratch-resistant coating can protect themselves against a scratch. It is worth reminding that it is still necessary to keep these glasses in a cushioned case, clean them with a microfiber cloth and use recommended cleaning solution.
Another beneficial coating for regular lens eyeglasses is called anti-fog coating. Regular eyeglasses will get fogged when the wearer enters an indoor, warm environment from outdoors. This will more commonly happen in a rainy day. For eyewear users living in a cold climate, such an experience will occur from time to time. Moreover, this problem may even cause a danger in police officers and other first responders. The good news is that lens coating companies have developed anti-fog coating as a perfect solution. Lenses applied with such a coating will stay clear during the transition period mentioned above.