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Staring at your computer screen, smartphone or other digital devices for long periods won’t cause permanent eye damage, but your eyes may feel dry and tired. You may develop blurry vision, fatigue or eye strain. Some people also experience headaches or motion sickness when viewing 3-D, which may indicate that the viewer has a problem with focusing or depth perception.
Normally, humans blink about 15 times a minute, but studies show we blink half to a third that often while using computers and other digital screen devices, whether for work or play. Extended reading, writing or other intensive “near work” can also cause eye strain.
A note to contact lens users: Contact lenses can exacerbate eye dryness and irritation common to heavy users of computers and other digital devices often. Some tips:
If your eyes are consistently red, blurry or watery, or they become sensitive to light or painful, see an ophthalmologist.