Corneal Ulcers, Symptoms and Causes
Corneal ulcers are cuts, abrasions or open sores on the cornea, the clear, transparent tissue at the front of the eye. It is often caused by infection.
Corneal Ulcer Symptoms
Symptoms of corneal ulcers include:
- Pain that feels as if there’s a foreign object in the eye
- Blurry or hazy vision
- Sensitivity to light (photophobia)
- Watery eyes
- Itching and discharge
- A white spot on the cornea
Complications of corneal ulcers may include deep-seated infection, perforation of the cornea, displacement of the iris and deterioration of most or all of the eye socket tissues.
Corneal Ulcer Causes
Corneal ulcers are usually caused by an infection. The infection may be the result of bacteria, virus, fungus or parasite. Wearing inadequately disinfected contact lenses or wearing soft contact lenses overnight can cause an infection that leads to a corneal ulcer.
Other causes of corneal ulcers include:
- A corneal injury that later becomes infected
- Severely dry eyes
- Scratches on the eye surface
- Foreign bodies in the eye
- Severe allergic eye disease
- Eyelids that don’t close all the way
- Various inflammatory disorders