ShABKURI, asho, gemeralopiya (az yun. hemera — ruz, alaos — kur, kurkunanda va ops — chashm), ikhtiloli qobiliyati bosirai insonro guyand, ki dar natijai on dar nimtoriki va shab chizero dida nametavonad. Sababash narasidani vitaminhoi A va V3 (riboflavin) dar organizm meboshad.