Last week we discussed Digital Eye Strain, the causes and how to prevent eye fatigue. Today, we’re going to explore a prevention method for Digital Eye Strain more in-depth. Blinking.


Incomplete Blinking

A recent study by State University of New York (SUNY) College of Optometry showed that patients had more incomplete blinks when reading from a computer. An incomplete blink occurs when the edge of the upper eyelid does not contact the lower lid. That means that a new film of tears is not spread over the entire cornea. This lack of moisture can cause dryness, irritation, fatigue, etc.

An optometrist leading the study said a simple way to avoid the consequences of incomplete blinking is to “fully open and close your eyes every once in a while, and that could really make a difference." 

And, there’s always Old Faithful: The 20/20/20 rule. Every 20 minutes, computer or device users should look up for 20 seconds and focus on an object at least 20 feet away.