Superficial punctate keratitis

What is Superficial Punctate Keratitis?

Superficial punctate keratitis is a common eye disorder characterized by small, round lesions in the superficial layer of the cornea (the transparent layer of tissue that covers the iris and pupil). These lesions can occur in one or both eyes and usually cause blurred vision, redness, sensitivity to light and irritation. Superficial punctate keratitis is also known as punctate epithelial erosions (PEEs) or corneal erosions.

Symptoms of Superficial Punctate Keratitis

The most obvious symptom of superficial punctate keratitis is blurred vision, redness, and a burning or stinging feeling in the eyes. Other symptoms can include increased light sensitivity, eye fatigue, and a gritty feeling in the eyes.

Causal Factors of Superficial Punctate Keratitis

Superficial punctate keratitis can have a variety of causes, including:

  • Dry eyes
  • Exposure to irritants, such as smoke or chemicals
  • Inadequate tear production
  • Infection
  • Allergies
  • Use of contact lenses for extended periods of time

Diagnosis and Treatment of Superficial Punctate Keratitis

A doctor will perform an eye test to diagnose superficial punctate keratitis. This test may include a slit-lamp exam, in which a doctor uses a microscope to examine the eye in detail. Further tests may also be necessary, such as a bacterial culture, if an infection is suspected. Treatment of superficial punctate keratitis depends on the underlying cause, but may include medications (such as antivirals or corticosteroids) or the use of artificial tears or lubricating eye drops.