After he had consumed a diet low in vitamin A diet for some time, Perry developed _______________, which made it very difficult for him to drive safely at night because of his impaired ability to see in the dark.

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The Answer of After he had consumed a diet low in vitamin A diet for some time, Perry developed _______________, which made it very difficult for him to drive safely at night because of his impaired ability to see in the dark.

After He Had Consumed a Diet Low in Vitamin a Diet