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Day sight, the nyctalopia of some authors, is said to be endemic in some countries,—Poland, the West Indies, Brazil, and various intertropical regions.

A temporary evening blindness occasioned by sleeping in the moonshine in tropical climates; it is technically designated nyctalopia.

Government, offer to it, to discover the remedy for nyctalopia, 335.

His nyctalopia was a great advantage, his cat-like sight enabling him to distinguish the smallest object in the deepest gloom.

"Confound the nyctalopia!" said Paganel, inwardly, though delighted to be of any service to his friend.