| 释义 |
aniridia
aniridia (ˌænɪˈrɪdɪə) nthe absence of an iris, due to a congenital condition or an injuryaniridia
aniridia [an″ĭ-rid´e-ah] congenital absence of the iris.an·i·rid·i·a (an'i-rid'ē-ă), [MIM*106210] Absence of the iris. Compare: irideremia. [G. an- priv. + irid- + -ia] aniridia Ophthalmology A congenital AD or AR condition characterized by a virtually complete absence of the iris, which may be accompanied by other ocular defects–eg, congenital cataracts, corneal dystrophy, foveal hypoplasia, and therapeutically refractory glaucoma Prognosis Pooran·i·rid·i·a (an'i-rid'ē-ă) Absence of the iris. Compare: irideremiaaniridia Absence of the iris of the eye. This may be CONGENITAL or, more commonly, the result of injury.aniridia Complete, or almost complete, absence of the iris of the eye. It can be acquired, due to trauma, or inherited as an autosomal dominant trait. The patient is photophobic and in congenital cases there is usually amblyopia and sometimes nystagmus. Contact lenses incorporating an artificial iris, or tinted spectacle lenses, help in this condition. See chromosome; irideremia; cosmetic contact lens.See AN See AN1 |