Corneal Opacity

(Corneal Opacification; Cloudy Cornea)

Definition

Corneal opacity is a disorder of the cornea. The cornea is the transparent structure on the front of the eyeball. Corneal opacity occurs when the cornea becomes scarred. This stops light from passing through the cornea to the retina and may cause the cornea to appear white or clouded over.

Causes

Infection, injury, or swelling of the eye are the most common causes of corneal opacity.

Risk Factors

Factors that may increase your chance of corneal opacity:
  • Vitamin A deficiency
  • Measles —when measles result in scarring/infection of the eye
  • Foreign bodies striking the eye
  • Eye injury, whether from a force, such as a poke in the eye, or from a chemical agent
  • Herpes simplex virus —which can be transmitted to the eyes
  • Other infections, including conjunctivitis
  • Wearing contact lenses for a long period of time, especially overnight, can increase the risk of eye infections and also the chance of developing corneal opacity.
  • Keratoconus
  • Stevens-Johnson syndrome
  • Congenital corneal abnormalities
Ocular Herpes
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Symptoms

Corneal opacity may cause:
  • Vision decrease or loss
  • Pain in the eye or feeling like there is something in your eye
  • Eye redness, excessive tearing, or light sensitivity
  • Area on the eye that appears cloudy, milky, or is not completely transparent

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