Tips to prevent dry eyes from digital devices.

Prevent Dry Eyes from Smartphones, Tablets and Computers

With the advant of modern electronics that are revolutionary.  What, exactly, are the screens we look at so much, doing to our eyes?

• Retina Damage

Those glowing flat panes, held inches from our face, emit a powerful blue-violet light that can lead to permanent eye damage. Research indicates too much exposure to blue-violet light can injure the retina. Retina damage can lead to macular degeneration, the most common cause of  blindness in elderly.

• Radiation damage potential for Cataract

Another source of eye injury is the microwave radiation emitted by cell phones. In an Israeli study, the lenses of calves (which strongly resemble humans) were exposed to the heat and the microwave level emitted by a cell phone. After two weeks, the cells showed signs of damage that limited their ability to focus light. Some had also irreversibly bubbled, a precursor to developing cataracts.

1. Slower Blink Rate- Resulting in Dry Eye Syndrome
A related problem is that when we focus on our screen tiny eye movements called saccades are disrupted.  Saccades deliver refreshed visual information to the brain and blinking momentarily disrupts the saccade.   Therefore, the blink rate slows so that we can continue the saccades without interruption.   When blink rate slows, the protective tear film covering the surface of the eye begins to deteriorate. The tear film not only keeps our eyes moist, but brings nourishment and removes waste.  The end result is dry eye syndrome and red, irritated, tired eyes.

The average adult spends seven hours a day in front of a screen, and twenty-somethings check their cell phones about 32 times a day. The technology is too new to know how all this will add up in later life, when our senses deteriorate as a part of aging. Further research is needed to clarify potential risks.

Turn down screen brightness:

In the meantime, doctors  recommend turning down screen brightness and decreasing screen usage time when possible. Heavy users can also purchase a screen cover to decrease exposure.

Avoid staring at a bright screen in dark lighting conditions, such as checking messages on your cell phone in a dark bedroom.

Taking breaks, remembering to blink and attention to exercise, diet and proper supplementation can also help to prevent eye damage from screens.

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