Eye strain refers to ocular fatigue, eye discomfort and headaches associated from intensive use of the eyes. Common causes include:
glare on the computer screen
poor visual correction (out of date eyeglass prescription)
reading small character sizes on the screen
poor contrast between text and background on the monitor
noticeable screen flicker
dry eyes
Blurred vision can be caused by normal physiological changes in the eye (i.e. aging or disease). It can also be caused by constant focusing on objects within 12" of the eyes, which often occurs when reading in low light.
Dry and irritated eyes occur when there is insufficient fluid in the eyes to keep them moist. Eyes are kept moist and refreshed by a normal blink reflex which is present from birth. Blink rates vary with different activities and can become slower when concentrating. Eyes can become red and itchy. Common causes include:
Kathleen Hillman on 06 Nov 13I am concerned about students using technology devices and no one is teaching student about eyes strain.
Thanks! This article was helpful to me because of the amount of time I spend on the computer.