<prompt> Which of the following is not a cause of cataractDiabetesWilson diseaseGalactosemiaHypomagnesemia  <response>: Hypomagnesemia is least likely to cause cataract MISCELLANEOUS CATARACTS Diabetes- Snowflake snowstorm cataract Wilsons- Sunflower cataract, chalcosis. Bread crump appearance- Complicated cataract Coicosteroid cause posterior subcapsular cataract.Note topical steroids cause glaucoma more; systemic cause cataract more. Oil drop cataract -galactosemia is reversible deficiency of GPUT Anterior lenticonus- Alpo Posterior Lenticonus- Lowe Syndrome Shield cataract- Atopic dermatitis. Radiation can cause PSC cataract. Hypocalcemic cataract - Tetanic cataract Myotonic dystrophy- Christmas tree cataract Persistent hyaloid aerymittendorf dot -can be a cause of Posterior polar cataract. 