Lens opacity. Etiology Aging senile cataract



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Cataract Eye68 ()

Cataract

Last updated: September 5, 2017


Cataract - developmental or degenerative lens opacity.

Etiology



  1. Aging (senile cataract) - leading causes of blindness in world!!!

  2. Traumatic cataract - secondary to blunt or penetrating ocular trauma.

  3. Chronic exposure - X-ray, infrared (glass-blower's cataract), UV, electric shock.

  4. Systemic disease (e.g. diabetes mellitus!, neurofibromatosis-2)

  5. Chronic uveitis

  6. Systemic medications (e.g. chronic corticosteroids).

Symptoms & Signs

- progressive, painless vision loss.





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