Our eyes are not suited to staring at a computer screen for very long.
Eyes cannot properly lock focus on pixels or tiny dots of light that make up computer screens or Video Display Terminals (VDTs). A computer user’s eyes must continuously focus, refocus and focus again on tiny dots of light on the VDT in order to keep its image sharp.
This process results in repetitive stress disorder of eye muscles not unlike Repetitive Strain Injury that contributes to Carpel Tunnel Syndrome in wrists.
If you use a computer for one hour or more each day, you will benefit from specialized eye tests needed to diagnose and treat problems related to Computer Vision Syndrome.