Keratitis eye infection

Eye anatomy

Superficial keratitis involves the uppermost layers of the cornea. When this form of keratitis has healed, there is usually no scar on the cornea.

Deep keratitis affects deeper corneal layers. There can be a scar left after healing which may or may not affect your vision, depending on where the scar is located.

In addition to bacterial keratitis, there are a number of other types of keratitis eye infection, some of which include:

  • Amoebic keratitis (usually affecting contact lens wearers, it is often caused by Acanthamoeba);
  • Fungal keratitis (infection with fungi);
  • Viral keratitis (caused by herpes simplex and herpes zoster viruses);
  • Photokeratitis (due to intense ultraviolet radiation exposure, e.g. snow blindness or welder's arc eye).

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