Adjustable flanged technique for secondary implantation of four-point scleral‑fixated posterior chamber intraocular lenses using two parallel 6−0 polyglactin sutures

Abstract

Abstract Objective To assess the efficacy and safety of using the adjustable flanged technique for secondary implantation of four-point scleral‑fixated posterior chamber intraocular lenses with two parallel 6−0 polyglactin sutures. Methods Two parallel 6−0 polyglactin sutures were passed separately through the two haptics on the horizontal line of the 4-haptic IOL. The four externalized sutures were then trimmed and cauterized to form flanges. The best corrected visual acuity, intraocular pressure, and complications in all patients were observed and recorded. Results The flanged technique using two parallel 6−0 polyglactin sutures was applied to 14 aphakic eyes. The average preoperative best corrected visual acuity was 1.00 ± 0.88 LogMAR (Snellen 20/200), which improved to 0.42 ± 0.38 LogMAR (Snellen 20/48) at the final follow-up (P = 0.004). None of the patients experienced vitreous hemorrhage, low intraocular pressure, or issues with exposed or broken sutures. Conclusion The simplicity of the technique, along with its ability to accommodate adjustments post-implantation, allows for optimal positioning and reduces risks like IOL tilt or dislocation. Overall, this is a promising approach to secondary IOL implantation, with potential benefits for both patient outcomes and surgical efficiency.

Keywords

• Secondary implantation
• Intraocular lenses
• Flanged technique
• Four-point scleral‑fixated