Dry eye disease (DED) occurs when your eyes fail to produce good quality or sufficient tears to lubricate the surface of your eyes. Several causes of dry eye disease include environmental factors. For example, excessive exposure to wind that reduces the tear volume in your eyes because your tears evaporate at a faster rate or when you are in an air-conditioned room with low humidity.
The symptoms of dry eye disease generally surface when your tear production decreases or when tears evaporate too quickly, causing tear film instability. The tear film’s instability may cause eye discomfort, and inflammation, and irritation on the front surface of your eye (also called the cornea). These may cause you to feel a burning sensation on your eyes.
If you suffer from dry eye disease, the following sections will list down several options to help ease the symptoms of dry eye or even prevent it.
As the human body is made up of 60% water , your organs have to remain constantly hydrated. This is in order for you to remain healthy. Therefore, try to consume 8 to 10 glasses of water each day to avoid dehydration. Boost your liquid consumption by consuming water-rich foods. These include watermelon and cucumbers if you do not wish to stick to plain water. Check the colour of your urine to check if you are well-hydrated. A good test to check if you are well-hydrated is to check the colour of your urine. If your urine is colourless or light yellow, you are most likely well-hydrated.
When viewing digital screens placed above your eye level, the surface of your eyes are exposed to the surrounding environment more than usual. This situation causes the tears on the surface of your eyes to be exposed to more air and wind in your surroundings and hence evaporate at a faster rate, thus leading to a decrease in your tear volume. The inadequate amount of tears being produced to lubricate your eyes may eventually lead to dry eye disease. Bearing this in mind, place your digital screens slightly below eye level (15-20 degrees lower). This is so that when you look at the screen, your eyes do not need to open as wide as when you look at your screen placed above eye level.
Blink your eyes more frequently when engaging in activities that demand visual concentration. This includes staring at your mobile device or computer screen. This is to ensure that your eyes remain moisturised as they should and that tears are evenly distributed across the surface of your eyes. Besides blinking your eyes regularly, the American Optometric Association recommends the 20-20-20 rule, which involves taking an eye break every 20 minutes for 20 seconds by looking at things placed at least 20 feet away (about 6 metres).
Suffering from a chronic dry eye condition? Use eyedrops or over-the-counter artificial tears regularly to keep your eyes well moisturised and comfortable. Such over-the-counter products are not cures for your dry eyes. There are ways to mitigate them to help you feel more comfortable.
These products contain moisture-retaining ingredients as well as lubricants like carboxymethylcellulose that may mitigate the symptoms of dry eye disease . However, the regular use of such over-the-counter products, especially those containing preservatives, may also lead to allergic reactions or discomfort in the long haul. It is advised to consult your eye care professional before using these over-the-counter products to ease dry eyes.
To prevent your tears from evaporating at a faster rate, wear protective eye gear to reduce your eye’s exposure to dry air and wind. For example, consider installing safety shields to the sides and tops of eyeglasses. Doing so protects your tears from evaporating too fast and eases dry eyes.
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 Healthline. 2021. Dry Eye Syndrome. [online] Available at: <https://www.healthline.com/health/dry-eye-syndrome#symptoms> [Accessed 14 August 2021].
 Aapos.org. 2021. Meibomian Gland Dysfunction and Treatment – American Association for Pediatric Ophthalmology and Strabismus. [online] Available at: <https://aapos.org/glossary/meibomian-gland-dysfunction-and-treatment> [Accessed 15 August 2021].
 Mayo Clinic. 2021. Dry eyes – Symptoms and causes. [online] Available at: <https://www.mayoclinic.org/diseases-conditions/dry-eyes/symptoms-causes/syc-20371863> [Accessed 15 August 2021]
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