Abstract: Various examples are provided related to electrosurgical devices which can be used during ab interno canaloplasty or pupilloplasty surgery. In one example, a suture tensioning and electrocautery device includes a casing; suture grips protruding out of a proximal end of the casing; a suture tensioning and retracting system connected to the suture grips; and a suture electrocautery system. In another example, a method includes affixing ends of a suture to respective suture grips protruding out of a proximal end of a suture tensioning and electrocautery device; tying the ends of the suture and tensioning the suture by rotating the suture grips to dilate Schlemm's canal; and heating the tied ends of the suture to maintain the tensioning of the suture thereby sustaining dilation of the Schlemm's canal.