Protect Your Eyes From Screen Damage

We spend more time than ever looking at screens, no matter our ages – television, computer, tablet, smartphone and games. Many of these screens have enhanced out quality of life and our ability to gather information, but they can play havoc on our eyes and sleep patterns.

Office workers who spend long hours looking at computer screens have changes in their tear fluid similar to people with the disease known as dry eye, according to recent studies.

The protein MUC5AC, secreted by cells in the upper eyelid, makes up part of the normally occurring mucus layer, or “tear film,” that keeps the eye moist. People that spent the longest in front of screens had MUC5AC levels nearing those of people with diagnosed dry eye. Dry eye is a painful condition that can cause vision disturbances if left untreated as it indicates the eye is strained.

Dry eye is characterised by irritation of the eye, along with a burning sensation or blurred vision.

When we stare at computers, our blinking times decrease compared to reading a book, for example. We also tend to open our eyelids wider than while doing other tasks. As a result, the extra exposed surface area combined with infrequent blinking can accelerate tear evaporation and is associated with dry eye disease.

Dry eye can become a chronic complaint. It can be managed with over the counter or prescription eye drops, but as with all eye conditions, don't self diagnose. Check with your optometrist what the best teatment will be and remember to give your eyes several hours each day without starting at a screen.

To help prevent dry eye, lower your computer terminal and tilt the screen upwards a little to reduce the need to open your eyes wide. Try and avoid being in the direct path of airconditioning and use a humidifier in the office if possible.