It is seen that people who work on their computers for long hours experience blurred vision, red eyes, eye strain, and other problems. This is because the demands of working on a computer are different from the demands that other activities have for the eye.
Computer glasses are different from reading glasses and regular eyeglasses. They are designed to optimize vision when you are working on a computer. Such glasses are also called task specific glasses. There are several options of computer glasses available depending on the job and the person’s vision.
There are several kinds of lens prescribed for computer glasses. A few are mentioned here.
Single vision lens
In such lenses, the power is modified such that the user gets optimum vision when working on a computer. The power is optimized for the distance between the user and the computer screen.
Occupational progressive lens
The intermediate zone in these lenses is larger compared to that of a regular progressive lens. It corrects near and intermediate vision as well as distance vision. These lenses are not recommended for activities which require distance vision, such as driving.
Occupational bifocals and trifocals
In these lenses, the near and intermediate zones are larger. Their position can also be customized for specific computer needs.
You can also go for anti-reflective coating on your lens. This will reduce glare and enhance contrast. Computer screens also emit blue light which has a short wavelength. It is said that it causes eye strain and glare. Tinted glasses can block this.
When selecting computer glasses, many factors have to be considered such as visual ability, the work type, the distance between the monitor and the person’s eyes, and lights in the workplace. Always consult an eye specialist before selecting computer glasses.