After using a special forceps 1 for surgery of the extraocular muscles, which has proved completely satisfactory for over four years, it was considered desirable to construct a forceps with similar principles for use in ptosis operations. The shaft of the ptosis forceps is 8 cm. in length and 6 mm. in diameter, with a knurled activating screw at one extremity. The jaws at the opposite end of the forceps are 17 mm. in length and 1.5 in breadth (see figure). The lower blade, which has a smooth upper Muscle forceps for ptosis operations and surgery of the superior oblique. surface, is perforated to receive the eight teeth located on the lower surface of the upper blade. These teeth, which are 1 mm. in length, serve to grasp the muscle firmly and prevent it from slipping. The upper blade is grooved between the teeth to permit the passage of sutures
Berens C. NEW MUSCLE FORCEPS FOR PTOSIS OPERATIONS AND SURGERY OF THE SUPERIOR OBLIQUE. JAMA. 1956;160(3):207. doi:10.1001/jama.1956.02960380055012b
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