If you have dry or irritated eyes you may find that you experience a gritty, burning sensation when you blink although dry eye should not cause significant pain. Dry eye will usually affect both eyes together but your vision should remain normal, symptoms often worsen as the day goes on.
Dry and irritated eyes can be due to disturbed lipid layer of the tear film. Each time the eye blinks the eyelid spreads your tears across the surface of the eye to form a film. This film acts to reduce the evaporation of moisture from the eye, helping it stay hydrated. Dry eyes can occur when either you don't produce enough tears or when a gap in the protective tear film allows moisture to be lost. Optrex ActiMist double action eye spray dry & irritated eyes stablises the eye's lipid layer to lock in natural moisture and offer instant relief for up to four hours.