A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . ry or chronic glaucoma may occur monthsor years after needling, through adhesions causingtraction. If these adnesions be cut, the processusually comes to a standstill. Iritis and iridocyclitis may occur from too rapidswelling of the lens substance. In a very small percentage of cases, severe infection and evenpanophthalmitis may occur. Von Graefe advisedperforming an iridectomy prior to the present day, this procedure is recognized asunnecessary. Disc
A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . ry or chronic glaucoma may occur monthsor years after needling, through adhesions causingtraction. If these adnesions be cut, the processusually comes to a standstill. Iritis and iridocyclitis may occur from too rapidswelling of the lens substance. In a very small percentage of cases, severe infection and evenpanophthalmitis may occur. Von Graefe advisedperforming an iridectomy prior to the present day, this procedure is recognized asunnecessary. Discission or dilaceration of membranous cataractais not done to promote their absorption, for to a largedegree they are composed of non-absorbable material,but rather to make a free opening in the membrane. In former times the operation was much feared onaccount of the complications which occasionallyoccurred, iritis, iridocyclitis, suppuration and glau-coma: but since the adoption of asepsis, these dangershave been greatly reduced, until now it is well tooperate in any case where a definite increase invision is to be Fig. —Discission (Needling) through the Clear needle is directed forward to a point about one millimeterfrom the center of the dilated pupil, pushed about one millimetainto the lenticular substance and then a cut two millimeters longis made through the central area of the lens. (Woods Systemof Ophthalmic Operations, The Cleveland Press.) As to the time of operation, it may be said thatnone should be performed until aU signs of inflam-mation have left the eye. Some surgeons are accus-tomed to do a .secondary operation two or threeweeks after cataract extraction, while the verycautious ones may wait for three or four months. For the operation itself, some form of artificialillumination should be used. The light may on the eye with a condensing lens, as it isvery difficult to see just what is going on. In orderto help the vision
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