Dry Eyes and Contact Lenses
A properly fit contact lens should ride or float on the eye on a thin film of fluid (tear film). With each blink, this film of fluid between the contact lens and the eye is replaced with fresh fluid, allowing debris to be washed away and fresh oxygen that is dissolved in the fluid to reach the cornea. If this film is compromised in quantity or quality, the contact lens may become uncomfortable or even unhealthy to wear.
At each exam, the eye doctor will evaluate the fit of the contact lens and look for signs of early damage to the cornea that may be a result of a compromised tear film.