Show night blindness inability to see by day Is matched by the commoner night blindness which most ot of us have known in friend or relative this defect which includes an inability to see even by artificial light Is congenital with some people and never overcome oNer come it Is often hereditary it may also be caused however by long exposure to over bright light coupled with fatigue A strange story stoby is told concerning a ships crew two centuries ago which was overcome by night blindness so extreme that their captain was obliged to force a fight with a spanish privateer during the day knowing that by night his men would be helpless in order to obviate this difficulty tor for future occasions he ordered each sailor bailor to keep one eye bound during the daytime discovering to his gratification that thai this eye having rested was then free of the defect the sailors were very amusing tn in their efforts to retain the bandage welt well over the eye that must be ready for night duty and so a method of modifying this trouble was discovered |