27-gauge trocar-assisted sutureless intraocular lens fixation

BackgroundsHowever there have been numerous investigations of intrascleral intraocular lens (IOL) fixation techniques, there is room for improvement in terms of simplifying complicated techniques and reducing the high levels of skill required. This study aimed to report a novel technique for sutureless intrascleral fixation of the IOL using retinal forceps with a 27-gauge trocar.MethodsNineteen eyes of 18 patients underwent intrascleral fixation of the IOL from July 2018 to September 2019 were enrolled in this study. A 27-gauge trocar formed 3-mm scleral tunnels positioned at 4 and 10 o'clock, 2mm from the corneal limbus. We used a 3-piece IOL haptic grasped by a 27-gauge retinal forceps and pulled from the 27-gauge trocar. The IOL was fixed by making a flange. Main outcome measures were visual acuity, corneal endothelial cell density, IOL tilt, decentration, predicted error of refraction and complications.ResultsThe 19 eyes were followed up for 1month. The mean pre- and postoperative logMAR uncorrected visual acuity (UCVA) was 1.060.63 and 0.40 +/- 0.26, respectively (p<0.01), while the mean pre- and postoperative logMAR best corrected visual acuity (BCVA) was 0.27<plus/minus>0.51 and 0.06 +/- 0.15, respectively (p=0.09). The mean corneal endothelial cell density was 2406 +/- 625 to 2004 +/- 759 cells/mm(2) at 1month (p=0.13). The mean IOL tilt was 3.52 +/- 3.00 degrees, and the mean IOL decentration was 0.39 +/- 0.39mm. There was no correlation among IOL tilt, decentration and BCVA (p>0.05). The mean prediction error of the target refraction was -0.03 +/- 0.93 D. The complications were vitreous hemorrhage (3 eyes), hyphema (1 eye), IOP elevation (1 eye), iris capture of the IOL (1 eye) and hypotony (2 eyes). No IOL dislocation occurred.Conclusions IOL intrascleral fixation with a flange achieved good IOL fixation and visual outcome in the scleral tunnels created with the 27-gauge trocar.