<prompt> All of the following are causes of congenital blindness ExceptToxoplasmosisCongenital rubellaVitamin A deficiencyCataract  <response>: Causes of congenital blindness:ToxoplasmosisCongenital cataractsGenetic diseaseCongenital rubellaCongenital glaucomaUsher syndromeRefer: Nelsons Textbook of Pediatrics, SAE, 1st edition, pg no. 318 - 319 