What are the different types of computer glasses?

There are three general types of computer glasses: lenses with one vision, flat bifocals and glasses with variable focus. Each of these types helps to improve the eyesight of the individual and clarify his vision of what is displayed on the computer monitor and maximizes the visible area. The lenses of these types of computer glasses can be further modified to suit individual preferences. Many computer glasses have lenses that are treated with special coatings that reduce glare from the computer screen and provide eye relief. Others have a special shade that the right colors for individuals with vision problems; These types of lenses are usually used by older users, because the ability to correctly see that the color tends to deteriorate with age. Wearing these glasses reduces the number of obstacles that users see when working on a computer. One important disadvantage with one vision, however, is that they are calibrated in such a way that only objects as remote from the user as the computer screendiscovers clean; Items that are closer or further than the monitor will seem blurred.

Flat-top bifocals, on the other hand, allow better vision in multiple ranges. The lenses are usually divided into two halves - the upper half is calibrated to clarify the vision of objects at the distance of the computer screen, while the lower half is designed to improve vision of closer materials. These computer glasses are ideal for individuals whose work requires to work with objects outside the computer screen. Many individuals find that working with flat bifocals can be difficult, as most of the designs have a thin line over each lens, which separates two vision ranges.

Computer glasses with variable focusing on three rates, allowing maximum versatility. Unlike flat peak bifocals do not have glasses with variable focusing no visible definesbetween different vision ranges, allowing clear, undisturbed vision at hand. The lenses are often difficult to solve, so they are much more expensive than the other two options.

Computer glasses often have lenses that are covered with special materials that deal with problems such as glare and computer vision syndrome. Some glasses are colored to reduce white glare from computer screens, while others are coated with melanin to reduce the overall view and improve contrast, and also block potentially harmful ultraviolet (UV) rays. Computer glasses can also be specially made for repairing a color in the individual's vision; For example, pink and blue color glasses can allow users to better distinguish certain colors from others.