Further Experience with Intracapsular Cataract Extraction by Application of Low Temperature.

CATARACT extraction by application of low temperature has now been practised by us for nearly 2 years. The technical details of this method have been described in earlier papers, with reference to intumescent cataract (Krwawicz, 1961a,b). The application of the refrigerated cryoextractor to the cataractous lens produces an instantaneous freezing of the capsule and of the underlying mass, which attach themselves to the instrument firmly enough to assure the easy extraction of the lens. We now use a slightly modified instrument, in which the conical end is divided into one or two steps, and we feel that this adds to the handiness of the cryoextractor. Since minor variavariations in the shape and size do not influence the performance of the cryoextractor, the exact dimensions need not be given in detail, but the actual size is shown in Fig. 1.