Rare disorders that can cause blurred vision include hereditary optic neuropathies (eg, dominant optic atrophy, Leber hereditary optic neuropathy) and corneal scarring due to vitamin A deficiency. Evaluation of Blurred Vision History History of present illness should ascertain the onset, duration,...
The author uses nausea, blurred vision, and drowsiness as examples ofA.The symptoms of vitamin A deficiency.B.The results of hypervitaminosis AC.The results of storing toxic materials in the liver.D.The symptoms of excessive consumption of vitamins.的答