Corneal perforation

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Corneal perforation is an anomaly in the cornea resulting from damage to the corneal surface. A corneal perforation means that the cornea has been penetrated, thus leaving the cornea damaged.
The cornea is a clear part of the eye which controls and focuses the entry of light into the eye. Damage to the cornea due to corneal perforation can cause decreased visual acuity.

Causes[edit]

  • Diseases that cause progressive corneal thinning.
  • Accidents during eye surgery, that results in scraping or injury of the cornea.
  • Infection of the cornea post eye surgery.

Signs and symptoms[edit]

  • Difficulty in seeing.
  • Discoloration of the cornea.
  • Persistent eye pain.

Diagnosis[edit]

Corneal perforation can be diagnosed by using the Seidel test. Any aqueous leakage is revealed during the Seidel test confirms corneal perforation. A fluorescence strip is wiped over the wound. If the clear aqueous humor from the eye runs through the yellow stain, the patient tests positive for corneal perforation.

Treatment[edit]

The treatment of corneal perforation depends on the location, severity and the cause of damage

  • Tissue adhesive can be used to seal small perforation, but this method cannot be used to treat perforations larger than 1 mm.
  • Non infected corneal perforation generally heals when a pressure bandage is used.
  • For certain types of corneal perforations, lamellar keratoplasty is used as treatment.

References[edit]