Contact lens related dry eyes

The front of the eye is a transparent membrane known as the cornea,  and the outer surface of it,is covered by a layer of tears, known as the tearfilm.  The tearfilm consists mainly of water, but also contains many nutrients, defence proteins, oil and other substances

The tearfilm ...

Provides nutrients like oxygen to the cornea

Removes waste and debris from the eye (aided by blinking)

Prevents the cornea from drying out

Is the first line of defense if bacteria and viruses enter the eye

Any change to the quality or quantity or the tearfilm, will affect the cornea, and more specifically, can long-term lead to a reduction in corneal transparency.  Many people  known as 'boarder line dry eye', after  introduction of a contact lens onto the eye, may shift to suffering dry eye. The most common perception of dry eye is a reduction in the volume of tears on the eye surface.  Dry eye is also produced if the tear film is a poor quality (eg. if there is a reduction in the tear film's superficial oily layer, the tears evaporate faster than usual) a change in the rate or quality of a blink will also produce a dry eye

See our Contact lens product section for drops which can be used to re-wet dry lenses and sooth the eye.