Common medications could cause dry eye experts say

Nov 22 2007

Common oral and topical medications could be causing dry eye in patients, according to optometrists.

Dry eye is a common condition in which the eye produces fewer or poorer quality tears and is unable to keep its surface lubricated and comfortable.

According to studies, common medications can interfere with the normal secretions from ocular glands, causing dry eye as a side effect.

"A number of people suffering from dry eye are unaware of the link between common medications and this condition," says Optometrists Association Australia professional services manager, Shirley Loh.

Ms Loh says that medications such as the contraceptive pill, anti-histamines, tricyclic anti-depressants, topical and systemic beta-blockers and topical non-steroidal anti-inflammatory agents are known to be common causes of 'dry eye'.

Symptoms of 'dry eye' may include a scratchy or gritty feeling as though something is in the eye, general eye irritation, redness, persistently watery eyes, blurred vision, sore or stinging eyes, the sensation of dryness or a decreased tolerance to contact lenses.

Other causes of 'dry eye' can include environmental factors, ageing, hormonal changes, wearing contact lenses and arthritis.

Ms Loh recommends that anyone suffering from symptoms of 'dry eye' see their optometrist for a diagnosis and disclose any medications they are currently taking.

"The way in which dry eye is treated depends on the type and severity of the condition," says Ms Loh.

"Mild dry eye is best managed by using ocular lubricants or 'tear supplements'. Tear supplements are not drugs and do not 'cure' dry eye, but provide symptomatic relief by moisturising and lubricating the eye, effectively replacing the tears," she says.

Optometrists Association Australia's top tips for taking care of irritated eyes:

If you have symptoms of dry eye, such as a scratchy or gritty feeling in the eye, general irritation, redness, persistently watery eyes, blurred vision, sore or stinging eyes, the sensation of dryness or a decreased tolerance to contact lenses, see an optometrist who can give you the right diagnosis and treatment advice.

• Take a list of your currently used medications with you to the optometrist
• Don't delay treatment for dry eye or self diagnose by treating with the wrong eye drops.
• Wear sunglasses when outdoors to protect against the wind and ultraviolet rays.
• Practise good habits on the computer. Blink often and take regular breaks to rest your eyes.
• Try fish oil supplements, which can help to improve the symptoms of dry eye.