( n. )
A disease of the eyes, in consequence of which a person can see clearly or without pain only by daylight or a strong artificial light; day sight.
( n. )
A disease of the eyes, in consequence of which a person can see clearly or without pain only by daylight or a strong artificial light; day sight.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012