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Saturday, February 21, 2009

Cataracts-Few interesting types

Any opacity of the lens or loss of transparency of the lens that causes diminution or impairment of vision is called Cataract.

christmas tree cataract

  • Oil Drop Cataract  -In Galactosemia.Accumulation of dulcitol (galactose reduction product) within the lens cells leads to increased intracellular osmotic pressure and fluid influx into the lens.Early cataracts reversible with dietary restriction of galactose. Zonular or nuclear opacity with increased refractive power of the nuclear portion causes an "oil droplet" appearance on retroillumination. 

oil droplet cataract

  • Cerulean (blue-dot) cataract -Down's syndrome.

blue dot cataract

  • Rosette Cataract -Traumatic origin.

traumatic cataract

  • Snow Storm or Snow Flake Cataract -In Diabetes . 

snowflake cataract 

  • Sunflower Cataract -In Wilson’s Disease .

snow flower cataract

  • Polychromatic luster-bread crumb appearance -Complicated cataract .

polychromatic lustre 

  • Zonular cataract or Lamellar cataract  (Cataract with riders) -the most common type of Congenital cataract .

lamellar cataract

  • Morgagnian cataract - one type of Hypermature senile cataract . The cortex has turned into milky liquid and the nucleus is displaced inferiorly. 

morganiancataract 

  • Glass Blower’s Cataract -Due to Infrared irradiation.

3 comments:

Anonymous said...

really nice photographs. especially the oildrop and sunflower cataract... didn find such clear pics of them any where else.

Anonymous said...

beautiful pics... keep it up...

SHK said...

Excellent compilation .. keep up the good work . The pictures are excellent .

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