Saturday, February 25, 2012

Trachoma

Trachoma is an infection diseases causes a characteristic the roughening of the inner surface of the eyelids. Further infection of this diseases can make blindness.

Symptoms
Some sign of trachoma diseases as follows:
  • Mild itching and irritation of the eyes and eyelids
  • Discharge from the eyes containing mucus or pus
  • As the disease progresses, later trachoma symptoms include:
  • Marked light sensitivity (photophobia)
  • Blurred vision
The disease may growing when a child and progresses slowly until adult and more painful symptoms emerge until adulthood.

The development of trachoma diseases can divide into five stage:
  • Inflammation — follicular. Small bumps that contain lymphocytes beginning an infection with five or more follicles.
  • Intense of inflammation, the eye get highly infectious and becomes irritated, with a thickening or swelling of the upper eyelid.
  • Repeated infections lead to scarring of the inner eyelid, called as Eyelid scarring. The scars often appear as white lines when examined with magnification.
  • Trichiasis, or ingrown eyelashes. The scarred inner lining of the eyelid continues to deform, causing the lashes to turn in so that they rub on and scratch the transparent outer surface of the eye (cornea).
  • Corneal clouding. The cornea becomes affected by an inflammation that is most commonly seen under the upper lid. Continual inflammation compounded by scratching from the in-turned lashes leads to clouding of the cornea. Secondary infection can lead to development of ulcers on the cornea and eventually partial or complete blindness.
All the signs of trachoma are more severe in the upper lid than in the lower lid. With advanced scarring, the upper lid may show an S-shaped curve.

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