When your eyes don’t breathe

When the cornea does not get enough oxygen, there is corneal hypoxia.   This is the most common complication of contact lens wear, especially extended-wear lenses. The cornea has no blood supply of its own, so it gets oxygen only from tears and directly from the atmosphere.  Sleeping in or overwearing your contact lenses reduces theContinue reading “When your eyes don’t breathe”

When Contact Lenses Cause Scarring

Did you know that a corneal ulcer can cause permanent scarring? At the front of the eye is a clear layer of tissue called the cornea. The cornea allows light to enter the eye.  The cornea is bathed in tears, which provide the natural defense against bacteria and viruses. A corneal ulcer is an openContinue reading “When Contact Lenses Cause Scarring”