There are two different kinds of artificial tears including eyedrops with preservatives and those without. The drops with preservatives have ... it is important to avoid them. Allergies cause the eye ...
Participants in the clinical trial, which took place in 2008, used the drops or a placebo for four months. The short-term trial suggested that the drops gave some patients clearer vision. But the ...
How Allergies Affect the Eyes. Allergies occur when your body comes into contact with an allergen, triggering the immune ...