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Contact lenses research & development news

Dry eyes "may be due to temperature drop"


People who regularly suffer from dry eyes or have dry eye disorder may do so because they are frequently exposed to changes in temperature, new research has suggested.

A study carried out at the Department of Ophthalmology and Graduate School of Biomedical Sciences at the University of Texas Southwestern Medical Center suggests that a temperature lower than 30 degrees Celsius on the eye and eyelid could lead to the onset or worsening of the disorder.

Dr Igor Butovich, an assistant professor at the facility, said that cold temperatures cause the meibum, which is the oily substance which helps to form the outermost layer of the tear film, to become too thick and stiff to spread onto the eye surface.

"In outdoor conditions, the wind accelerates the drop in temperature of the ocular surface and the eyelids, thus the effect is even more pronounced," he explained.

It comes after research by Dr John Phillips and Dr Nicola Anstice, from the Department of Optometry and Vision Science at the University of Auckland, showed that the progression of myopia may be slowed by wearing dual-focus soft contact lenses, particularly in children.ADNFCR-1853-ID-800443941-ADNFCR

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