Blood vessels on the Eye

Corneal pannus is the growth of blood vessels onto the cornea.   A common cause of corneal pannus is contact lens wear, particularly if the contacts aren’t fitted properly.  In that case the contacts should be refitted, or perhaps discontinued. Sometimes pannus is a result of past infection such as herpes simplex. Sometimes corneal pannus is notContinue reading “Blood vessels on the Eye”

A corneal transplant

Recognizing the main warning signs of corneal transplant rejection is the first step to preventing graft failure. These can be remembered using the acronym RSVP: Redness Extreme Sensitivity to light Decreased Vision Pain

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 Problems

Did you know that sleeping in your contact lenses, over-wearing your contact lens, and not cleaning/disinfecting your contact lenses properly can cause a corneal infiltrate? Bacterial exotoxins are responsible for whitish/gray anterior stromal infiltrates in the cornea.  They are usually round, well defined, and small, ranging in size from 0.1mm to 2.0mm.  There are oftenContinue reading “When Contact Lenses Cause Problems”

Contact Lenses Cause a Scar

Did you know that if you over-wear your contact lenses and develop a bacterial infection, a corneal scar can develop?    This can permanently affect your vision.

When Contact Lenses Harm Your Eyes

Q:   How can contact lens wear be a risk? A:  Contact lenses are considered a medical device, which can put you at risk for serious eye infections  Q:  Why does a contact lens prescription have a specified expiration date? A:  Because the doctor must evaluate the health of your eye, to make sure that contactContinue reading “When Contact Lenses Harm Your Eyes”