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  Indian J Med Microbiol
 

Figure 2: Schematic gonioscopic representation of different surgical techniques of Kahook Dual Blade excisional goniotomy: (a) Outside-in technique: Kahook Dual Blade goniotomy starts at the periphery of the visualized nasal angle and moves centrally. This technique consists of both a forehand and backhand excision. This leads to a complete excision with a trabecular strip floating in the anterior chamber. (b): Inside-out technique: Kahook Dual Blade goniotomy starts at the center of the visualized nasal angle and moves peripherally. This technique consists of both a forehand and backhand excision. This technique leaves two trabecular meshwork strips attached at the periphery of the cleft. (c): Mark and meet: This technique avoids the backhand pass. Kahook Dual Blade enters the trabecular meshwork/SC off-center to create a small initial snip, “the mark.” It is then moved to the opposite end of the nasal angle and advanced until it meets the initial area marked, also creating a floating strip in the anterior chamber. (d) Our technique, which is a modification of the mark and meet technique without the initial “mark.” This technique leaves a floating leaflet of trabecular meshwork attached to the end of the created cleft

Figure 2: Schematic gonioscopic representation of different surgical techniques of Kahook Dual Blade excisional goniotomy: (a) Outside-in technique: Kahook Dual Blade goniotomy starts at the periphery of the visualized nasal angle and moves centrally. This technique consists of both a forehand and backhand excision. This leads to a complete excision with a trabecular strip floating in the anterior chamber. (b): Inside-out technique: Kahook Dual Blade goniotomy starts at the center of the visualized nasal angle and moves peripherally. This technique consists of both a forehand and backhand excision. This technique leaves two trabecular meshwork strips attached at the periphery of the cleft. (c): Mark and meet: This technique avoids the backhand pass. Kahook Dual Blade enters the trabecular meshwork/SC off-center to create a small initial snip, “the mark.” It is then moved to the opposite end of the nasal angle and advanced until it meets the initial area marked, also creating a floating strip in the anterior chamber. (d) Our technique, which is a modification of the mark and meet technique without the initial “mark.” This technique leaves a floating leaflet of trabecular meshwork attached to the end of the created cleft