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  Indian J Med Microbiol
 

Figure 6: This patient complained of night blindness and had Bitot's spots which were due to Vitamin A deficiency. This figure was taken before treat­ment, in which, photopic 'b' wave is 4 times the normal.

Figure 6: This patient complained of night blindness and had Bitot's spots which were due to Vitamin A deficiency.
This figure was taken before treat­ment, in which, photopic 'b' wave is 4 times the normal.