Glaucoma Surgery
The purpose of surgery is to eliminate internal resistance to aqueous humor outflow. Resistance to aqueous humor outflow is internal and external (see Fig. 14.2 ).
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Glaucoma Surgery
Contents 46.1 46.1.1 46.1.2 46.1.3 46.1.4
Pathophysiological Foundations ............. Manometrics Experiments ......................... Perfusion Experiments ............................... Enzyme Experiments ................................. Surgical Experiments .................................
786 786 787 787 787
46.2
Indications for Filtering Surgery ............
788
46.3
History of Glaucoma Surgery .................
788
46.4 46.4.1
Iris Surgery ............................................... General Points About Iris Surgery .............
789 791
Trabeculectomy ........................................ Purpose of Trabeculectomy ....................... Surgical Technique Steps ........................... Dissection of the Scleral Flap .................... Results of Trabeculectomy ........................ Complications and Their Treatment .......... Intraoperative and Postoperative Complications ............................................ 46.5.7 Malignant Glaucoma.................................. 46.5.8 Dellen, Corneal Fosetas, and Fuchs’s Dimples......................................... 46.5.9 Encapsulated Filtering Bleb ....................... 46.5.10 Gonioscopy in Trabeculectomy .................
793 793 794 795 800 800
46.5 46.5.1 46.5.2 46.5.3 46.5.4 46.5.5 46.5.6
46.6 46.6.1 46.6.2 46.6.3 46.6.4 46.7 46.7.1 46.7.2
Non-penetrating Deep Sclerectomy: Koslow Surgery ........................................ History ....................................................... Early Indication of NPDS in Open-Angle Glaucomas......................... Anatomical Landmarks .............................. Non-penetrating Deep Sclerectomy: Surgical Technique .............. Complications of Surgery ........................ Triangular Flap Dissected Too Superficially ............................................... Triangular Flap Dissected Too Deeply .................................................
801 802 804 808 808 810 810 812 812
46.7.3 46.7.4 46.7.5 46.7.6
Gonioscopy After NPDS ........................... Nd:Yag Laser Goniopuncture .................... Results........................................................ Clinical Cases ............................................
820 823 825 827
46.8 46.8.1 46.8.2
830 832
46.8.3 46.8.4 46.8.5 46.8.6 46.8.7 46.8.8 46.8.9
Valves Implants in Adults ....................... Different Types of Implants ....................... Construction and Operation of the Ahmed Valve Device ................................. Surgical Indication ..................................... Surgical Technique..................................... The Surgery Step by Step .......................... Target IOP .................................................. Postoperative Management ........................ Complications ............................................ Clinical Cases ............................................
46.9 46.9.1 46.9.2 46.9.3
Canaloplasty ............................................. Introduction........................................
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