Atlas and epitome of operative ophthalmology . 11 56. 59 57 58 169 170 OPERATIONS ON THE EYE. 6, b)—favors the occurrence of prolapse of the that have been ground too often, and have there-fore become too narrow at the cutting edge, also predisposeto this accident, because, as the needle advances, the handlealso pushes the wound edges apart and makes a roundishhole, which is slow to close and sometimes permits thevitreous to escape. Needling knives that are not of theproper construction may produce similar results. Instruments suitable for this purpose are sharp discissionneed
Atlas and epitome of operative ophthalmology . 11 56. 59 57 58 169 170 OPERATIONS ON THE EYE. 6, b)—favors the occurrence of prolapse of the that have been ground too often, and have there-fore become too narrow at the cutting edge, also predisposeto this accident, because, as the needle advances, the handlealso pushes the wound edges apart and makes a roundishhole, which is slow to close and sometimes permits thevitreous to escape. Needling knives that are not of theproper construction may produce similar results. Instruments suitable for this purpose are sharp discissionneedles of various shapes (Figs. 41, 43, 56), or needlingknives as designed by Knapp (Figs. 57, 58) and Kuhnt(like Knapps instruments, but bent over). With good instruments of this kind it is also possibleto enter the cornea (Knapp) and in that way attain morefreedom of movement with the instrument. The steps of the operation depend on the kind of sec-ondary cataract present. First of all, the eye must becarefully examined under good lateral illuminat
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectophthalmologicsurgic
