Figure 1 The microscope and a Swan-Jacob goniolens were used to accurately locate and display the position of the nasal angle firstly, and then a 1mm~2mm incision was made on the nasal angle with a microsurgical
图 2 将微导管的头部通过前房角切开口插入 Schlemm's 管
Figure 2 The tip of catheter is inserted into the Schlemm's canal through the goniotomy incision
图 3 使用显微手术镊将微导管向 Schlemm's 管内推进
Figure 3 Use the microsurgical forceps to advance the catheter in the Schlemm's canal
Figure 4 The catheter has been passed 360 ° around the canal, then grasp the tip of catheter with microsurgical forceps and pull the end of catheter, thus the circumferential trabeculotomy is created
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