Results of Yamane Scleral Intraocular Lens Fixation Using Extraocular Docking of the Trailing Haptic.

Abstract

To report results of a modified Yamane technique for scleral fixation of the intraocular lens. Data from all patients treated with scleral fixation using the Avansee AN6A at our hospital by a single surgeon were obtained and retrospectively analyzed from our database. In our technique, the trailing haptic was externally inserted into the lumen of the 30-G needle. The preoperative measurements included three variables: best-corrected visual acuity (Snellen), intraocular pressure (mmHg), and corneal endothelial cell count (cells/mm 2 ). Postoperative measurements included refractive error (D), aqueous depth (mm), tilt (°), decentration (mm), and the three preoperative variables. This study included 20 eyes (mean age, 65.3 ± 13.5 years). Preoperative conditions included lens subluxation (4 eyes), intraocular lens dislocation (13 eyes), and aphakia (3 eyes). The best-corrected visual acuity improved from 20/32 preoperatively to 20/20 postoperatively. The mean preoperative corneal endothelial cell density was 2,282 cells/mm 2 and changed to 2,091 cells/mm 2 at the last visit. Postoperative refractive error was slightly myopic (-0.13 ± 1.4 D). Regarding the position of fixated intraocular lenses, postoperative tilt was 5.57 ± 3.35° and postoperative decentration was 0.50 ± 0.26 mm. The simplified Yamane technique showed good overall clinical outcomes and stability of refractive predictability when performed by a single surgeon, making it easier to master. Further studies are required to expand on this simplified procedure.