\nˈiːdə͡l kˈatɐɹˌakt], \nˈiːdəl kˈatɐɹˌakt], \n_ˈiː_d_əl k_ˈa_t_ɐ_ɹ_ˌa_k_t]\
Definitions of NEEDLE CATARACT
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Needles of gold, silver, and steel have been used; the latter, alone, at the present day. The cataract needle is employed to depress or tear the crystalline when opake. This needle is usually made from 15 to 24 lines long; and is attached to a fine handle. The extremity may be, as in Scarpa's and Langenbeck's, pointed, prismatic, triangular, and curved; in Dupuytren's and Walther's flat, curved, and sharp-edged; in Hey's flat, with a semicircular and sharp end; or, as in Beer's Siehold's Schmidt's, Himly's, Von Grafe's, &c., straight and spear-pointed. A mark is generally placed upon the handle to inform the operator,-when the instrument is engaged in the eye,-what side corresponds to the crystalline.
By Robley Dunglison