Amaurosis
Pronunciation : Am`au*ro"sis
Part of Speech : n.
Etymology : [Gr. (Med.)
Definition : Defn: A loss or decay of sight, from loss of power in the optic nerve, without any perceptible external change in the eye; -- called also gutta serena, the "drop serene" of Milton.
Source : Webster's Unabridged Dictionary, 1913