Answer: cataracts

AnswerCrossword Clue
CATARACTSWhat Niagara Falls consists of.
CATARACTSThundering cascades.
CATARACTSWaterfalls
CATARACTSRiver drops
cataractsA large waterfall
cataractsA sudden rush of water; a downpour
cataractsA medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision
cataractsCATARACT, a waterfall