Surgical treatment; a practical treatise on the therapy of surgical diseases for the use of practitioners and students of surgery . etic (page 138),have been described. The following instruments are required; speculum,fixation forceps, lid elevator, spatula, wire loop, spoon, probe, curet, cys-totome, capsule forceps, iris scissors, iris forceps, and cataract knife (^ page 139). Simple extraction (extraction without iridectomy) is done as follows:The first step of the operation is the same as that for iridectomy (see page154). The eyeball is steadied by grasping the conjunctiva with fix
Surgical treatment; a practical treatise on the therapy of surgical diseases for the use of practitioners and students of surgery . etic (page 138),have been described. The following instruments are required; speculum,fixation forceps, lid elevator, spatula, wire loop, spoon, probe, curet, cys-totome, capsule forceps, iris scissors, iris forceps, and cataract knife (^ page 139). Simple extraction (extraction without iridectomy) is done as follows:The first step of the operation is the same as that for iridectomy (see page154). The eyeball is steadied by grasping the conjunctiva with fixationforceps. The tendon of a rectus muscle may be included in the grasp. If theright eye, for example, is to be operated on, the surgeon stands behind thepatient, and grasps with forceps in the left hand a fold of conjunctiva andthe tendon of the internal rectus. Some surgeons prefer to grasp the conjunc-tiva below the cornea. Some surgeons of skill dispense with the speculumand fix the eyeball and retract the lid by grasping the superior rectus withforceps. The point of a cataract knife is entered at the corneoscleral junc-. Pig. 829.—Incision of Cornea for Cataract knife has pierced the cornea, passed through the anterior chamber and emergedat the corneoscleral border on the other side. It will then cut directly upward, emergingat the corneoscleral border, leaving a flap of cornea and a wound opening the anteriorchamber. tion on a horizontal line 3 or 4 mm. below the summit of the cornea, andpassed across the anterior chamber between cornea and iris, to emerge atthe corneoscleral border on the opposite side (Fig. 829). The surgeon shouldbe sure that the cutting edge is upward before entering the knife. The knifeis then made to cut directly upward, emerging at the corneoscleral borderabove and leaving a flap of cornea and a wound opening the anterior flap usually should involve about half of the cornea. In the second stage of the operation the ey
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsurgery, bookyear1920
