Corneal infections are also called keratitis. This condition can be caused by damage after a foreign object has penetrated the tissue, such as from a poke in the eye, bacteria or fungi from a contaminated contact lens that passes into the cornea.

Left untreated, a severe corneal infection may cause scarring, which may require corneal transplant surgery to see clearly again.


  • Painful inflammation
  • Reduction of visual clarity
  • Corneal discharges
  • Corneal erosion
  • Corneal scarring (which can impair vision and may require corneal transplant surgery)

As a general rule, the deeper the corneal infection, the more severe the symptoms and complications. Corneal infections, although relatively infrequent, are the most serious complications stemming from contact lenses. If your cornea becomes compromised, corneal transplant surgery may be your best option.



Minor corneal infections are commonly treated with antibacterial eye drops. If the problem is more severe, it may require more intensive antibiotic or anti-fungal treatment to eliminate the infection, as well as steroid eye drops to reduce inflammation. Frequent visits to an eye care professional may be necessary for several months to eliminate the problem. 


The cornea is the clear, dome-shaped surface of your eye that focuses light. When corneal disease or injury cause clouding or distortion of vision, a corneal transplant may be the best solution.

The first step in a corneal transplant is to find a donor cornea. Currently, there is no wait for a donor cornea in the state of Washington through the Northwest Lions Eye Bank. The donated cornea is thoroughly tested for infectious disease and for its suitability for transplantation.


In standard corneal transplant surgery, the entire cornea is removed and replaced with a healthy donor cornea. The new cornea is sewn in place with a very fine suture (finer than a human hair). The suture stays in for months or even years until the eye heals properly (removing the suture is quite simple and can easily be done in our office).

Depending on your situation, your Clarus physician may prefer a new type of corneal transplant, known as Descemet’s Stripping Automated Endothelial Keratoplasty (DSAEK). With DSAEK, only the diseased portion of the cornea is removed and replaced with a partial donor cornea. DSAEK has these advantages over traditional corneal transplant surgery:

  • Faster visual recovery
  • Less chance of astigmatism since there are no sutures
  • Eye is much stronger and more resistant to injury
  • Surgery time is quicker


Even with a fairly high success rate, problems can develop, like a rejection of the new corneal, corneal swelling, and infection.

Warning signs of a problem are decreased vision, increased redness of the eye, increased pain, and increased sensitivity to light. If any of these last for more than six hours, you should immediately call your ophthalmologist. Most complications can be successfully treated if medication is administered at the earliest sign of symptoms.

Your Clarus surgeon will use the latest diagnostic procedures to determine which treatment is best for you.