Friday, 27 December 2013

Cataracts

►Nulcear cataract: Hemeralopia + Index Myopia + Second sight
►Cortical cataract: Night blindness
►Posterior Subcapsular: Maximum visual handicap because PSC is closest to the nodal point + Near vision impaired.
►Myotonic dystrophy: Blue dot cortical cataract and posterior subcapsular cataract / Christmas Tree Cataract.
►Wilson’s disease: Green sunflower cataract (copper) anterior or posterior subcapsular.
►Atopic dermatitis: Blue dot cortical cataract and posterior subcapsular cataract.
►Hypocalcemia: Discrete white cortical opacities.
►Diabetes mellitus: Snowflake opacities located in anterior and posterior subcapsular cortex.
►Acute onset diabetes: Cortical wedges caused by lens fiber swelling.
►Down’s syndrome: Snowflake opacities located in anterior and posterior subcapsular cortex.

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