black cataract

(redirected from cataracta nigra)

black cat·a·ract

a cataract in which the lens is hardened and a dark brown. In the 19th century, German black cataract meant gutta serena (q.v.).

brun·nes·cent cat·a·ract

(brŭn'ĕ-sĕnt kat'ă-rakt)
A cataract in which the lens is hardened and of a dark brown color.
Synonym(s): black cataract.