What is Computer Vision Syndrome?

Computer vision syndrome or CVS is a group of eye and vision problems caused by the extended use of electronic devices. Sometimes people refer to CVS as digital eye strain. Computer monitors, smartphones, tablets, many types of E-readers, and laptop screens can all contribute to computer vision syndrome. Many people working in offices spend over seven hours each day looking at a digital screen, and 59% of American adults report symptoms of CVS. Children can develop computer vision syndrome too; American children spend an average of three hours a day viewing electronic screens.

1. Symptoms

There are three categories of computer vision syndrome symptoms:

• Ocular surface mechanism refers to the physical condition of the eyes. The most common ocular surface symptoms are a gritty or burning sensation, redness, itching, and watery or dry eyes.
• Accomodative mechanism symptoms affect vision and include blurred vision, double vision, difficulty focusing, and presbyopia or farsightedness. Presbyopia occurs when the lens of the eye loses elasticity.
• Extraocular mechanism symptoms affect areas other than the eyes. These symptoms include headaches, backaches, neck aches, and muscle fatigue.