Corneal Ulcer

A corneal ulcer is an open sore on the clear front surface of the eye, usually from infection. It is an eye emergency — especially in contact lens wearers — and needs prompt treatment to protect vision.

Understanding Corneal Ulcer

Corneal ulcers are most often caused by bacteria, and less often by viruses (such as herpes), fungi, or parasites. Sleeping in contact lenses is the single biggest risk factor. Eye injuries, severe dry eye, and eyelid problems that prevent the eye from closing also raise the risk.

Common symptoms

  • Eye pain and redness
  • A feeling that something is in the eye
  • Light sensitivity
  • Blurry vision and tearing or discharge
  • A white spot on the cornea

When to seek care right away

A painful red eye with light sensitivity — especially if you wear contact lenses — should be seen the same day. Remove your lenses and call us.

Office: (423) 243-3330 · After hours, Erlanger operator: (423) 778-7000

How Dr. Nicola can help

  • Slit-lamp examination and, when needed, cultures to identify the organism
  • Intensive antibiotic, antiviral, or antifungal drops
  • Close follow-up until the cornea heals

Frequently asked questions

Can I keep wearing contacts with a red, painful eye?

No. Remove your lenses right away, don't put them back in, and get examined. Bring the lenses and case with you.

This page is general patient education and is not a substitute for an examination. If you have a question about your own eyes, please call our office.