Computer glasses come in three types: single vision lenses, flat-top bifocals, and variable focus glasses. They improve eyesight, maximize viewable area, and can be modified with coatings or tints to reduce glare and correct color. Single vision lenses are best for focusing on the computer screen, while flat-top bifocals are ideal for those who work with objects outside of the screen. Variable focus glasses enhance vision at three distances but are more expensive. Special coatings and tints address issues like glare and color correction.
There are three general types of computer glasses: single vision lenses, flat-top bifocals, and variable focus glasses. Each of these types helps improve an individual’s eyesight by clarifying his or her vision of what is being displayed on the computer monitor and maximizing the viewable area. The lenses of these types of computer glasses can be further modified to suit the individual’s preferences. Many computer glasses have lenses treated with special coatings that reduce glare from the computer screen, providing relief from eye strain. Others have a special color-correcting tint for people with low vision; these types of lenses are typically used by elderly users, as the ability to see color correctly tends to deteriorate with age.
Single vision computer glasses allow people to better focus their vision on the computer screen. Wearing these glasses reduces the number of obstacles users see while working on a computer. A major disadvantage of single vision lenses, however, is that they are calibrated so that only objects as distant from the user as the computer screen appear sharp; elements closest to or furthest from the monitor will appear blurry.
Flat-top bifocals, on the other hand, allow for better vision at longer distances. Lenses are usually separated into two halves: the top half is calibrated to clarify vision on objects at computer screen distance, while the bottom half is designed to improve vision on materials closer. These computer glasses are ideal for people whose jobs require them to work with objects outside of the computer screen. Many people will find that working with flat-top bifocals can be difficult, however, as most designs have a thin line running through the center of each lens to separate the two fields of vision.
Variable focus computer glasses enhance vision at three distances, allowing for maximum versatility. Unlike flat-top bifocals, variable-focus eyewear doesn’t have a visible demarcation between different ranges of vision, allowing for a clear, unobstructed view of the work at hand. Lenses are often difficult to make, making them much more expensive than the other two options.
Computer glasses often have lenses coated with special materials that address issues like glare and computer vision syndrome. Some glasses are tinted to reduce the white glare from computer screens, while others are coated with melanin to reduce overall glare and enhance contrast, as well as block potentially harmful ultraviolet (UV) rays. Computer glasses may also be made specifically to correct discoloration in an individual’s vision; pink and blue glasses, for example, may allow users to better differentiate some colors from others.
Protect your devices with Threat Protection by NordVPN
