Related Experiment Video
Updated: Jan 10, 2026
A Step by Step Protocol for Subretinal Surgery in Rabbits
Published on: September 13, 2016
Modified suture-less flanged intrascleral intraocular lens fixation approach accessible for novice retinal surgeons
Bo-Een Hwang1,2, Woong-Joo Whang2,3, Young-Hoon Park1,2
1Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Purpose:
To evaluate whether two simplified mo-difications of flanged intrascleral fixation techniques (Yamane and Canabrava) provide comparable refractive outcomes and complication rates while reducing surgical complexity in tro-car-assisted vitrectomy.
Methods:
This retrospective observational study included 88 patients who underwent flanged fixation surgery with vitrectomy. In the modified Yamane technique, a single-path sclerotomy with bilateral symmetry was performed instead of an angled sclerotomy. In the modified Canabrava technique, the intraocular lens was inserted first, followed by the creation of a circular polypropylene loop with 2-mm flange spacing. Postoperative refractive parameters, including intraocular lens astigmatism, and complications such as intraocular lens iris capture were analyzed.
Results:
Of the 88 patients, 70 underwent the modified Yamane technique, and 18 underwent the modified Canabrava technique. No significant differences were observed between the two techniques regarding refractive outcomes or postoperative complications, except for surgical duration, which was significantly shorter (p<0.001) in one technique. Mean intraocular lens astigmatism was -0.675 D for Yamane and -0.666 D for Canabrava.
Conclusion:
Optimizing needle engagement for symmetry in the Yamane technique and narrowing flange spacing while ensuring a circular polypropylene configuration in the Canabrava technique may reduce surgical complexity and improve postoperative outcomes.
