What Causes Dry Eyes?

This uncomfortable condition of the eyes is most often brought about when the tear ducts of the eyes do not perform correctly

. The condition can cause a lack of tears to be produced or not enough tears to keep the surface of the eye moist.

In both instances, dry spots will form on the surface of the eye. The causes of dry eye in most cases are due to environmental causes, though there are some underlying medical reasons for this condition to occur. Allergic reaction to the preservatives in over the counter eye drops has been found to be one of the culprits in cases of dry eye. Thyroid disease, arthritis and antihistamines are also some of the causes of DES or Dry Eye Syndrome. The normal ageing process as well adds to increased difficulties and dries one's eyes.

Why Are Tears Important?

The tissue of the eyes has to stay constantly moist in a correct balance in order to remain healthy. The layers of tear film make it possible for the eye to function normally and give us first-rate vision. The outside layer of the lens or optical exterior is where light passes through to the eye. The central layer is the layer that controls the amount of moisture in the eye and is the provider of emergency flushing in the eye when there is a foreign object in the eye. The inside layer of the eye is the reservoir for the autoimmune system that keeps the eye from being infected and inflamed. This layer is formed of mucous.

What Are the Symptoms?

Patients with dry eyes may experience some or all of the following symptoms:

Burning

A feeling of grit in the eyes

Vision that oscillates with the opening and closing of the eye

While this condition cannot be healed, the tear film can be augmented in an attempt to supply the comfort of normal tears. Artificial tears in ointment variety are normally successful in treating dry eyes. Patients can be helped with the utilisation of humidifiers. Eye glass lenses ought to be treated to guard the eye from dangerous ultraviolet and infra-red radiation. In numerous cases, transitory or permanent closure of the tear drains assists to protect the normal moisture layer of the eye. In severe instances, combinations of every one of these treatments may possibly be required.

Environmental pollution is something we all experience on a daily basis and this pollution takes its toll on our eyes. When we have the choice, it is best not to remain in rooms that are smoke filled and it is best to avoid areas where there are strong chemicals being used when your eyes react with dryness. By practising a few safe guards combined with regular eye care such as wearing wraparound sunglasses to protect our eyes, we can enjoy moist, healthy eyes for the duration of our lifetime.

Regular check-ups with our optometrist will give your doctor the opportunity to spot a problem before it causes too much havoc in your eyes. Eating a balanced, nutritional diet is another way to assist with your eye care enabling the eyes to do the job they are designed to do and stay healthy as well.

by: Lawrence White

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