An American survey has found that two-thirds of women with dry eyes do not know the difference between the two main types of over-the-counter eye drops.
North American Press Syndicate reports the study of 371 women aged 45 to 65 by menopause education group Red Hot Mamas and Allergan, discovered that most did not understand how artificial tears and vasoconstrictors were distinct from each other.
Vasoconstrictors constrict blood vessels to treat eye redness while artificial tears are a lubricant.
Karen Giblin, president of Red Hot Mamas, said the organisation was working on raising awareness of the condition of dry eyes, calling it "an often overlooked consequence of menopause".
Dry eyes can be caused by ageing, particularly menopause.
Hormonal changes make women more likely than men to suffer from the condition as they get older.
It is a common condition in women over 40.
Redness, irritation, discomfort can be symptoms of dry eyes, this can be particularly uncomfortable for contact lens wearers.
There however numerous moisturising drops available for contact lens wearers with dry eyes.
by Adrian Galbreth