Verma Saurabh, Venkatesh Pradeep, Azad Shorya Vardhan, Kumawat Devesh, Khokhar Sudarshan
Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi, India.
Indian J Ophthalmol. 2025 Jan 1;73(1):149-150. doi: 10.4103/IJO.IJO_751_24. Epub 2024 Dec 23.
Scleral-fixated intraocular lens (SFIOL) is a widely used technique for IOL implantation in patients where capsular support is insufficient. Most surgeons have shifted away from sutured to sutureless SFIOL techniques where haptics of a multifocal IOL are inserted in scleral tunnels/flaps. Large-scale publications have shown wide variation in the refractive status of eyes post-SFIOL even in the best of the hands. This is because even slight variations in the site of scleral flap/tunnel formation and tension on haptics due to the variable length of haptics placed in scleral flaps/tunnels can alter the effective lens position and induce significant residual refractive error, especially cylindrical astigmatism due to IOL tilt. Our technique aims to reduce residual refractive error after SFIOL implantation. This is achieved by using intraoperative aberrometry and adjusting haptics accordingly to achieve minimal refractive error intraoperatively.
巩膜固定人工晶状体(SFIOL)是一种广泛应用于囊袋支撑不足患者的人工晶状体植入技术。大多数外科医生已从缝合式SFIOL技术转向无缝合式SFIOL技术,即将多焦点人工晶状体的襻插入巩膜隧道/瓣中。大规模研究表明,即使是技术最娴熟的医生,在植入SFIOL后,眼睛的屈光状态仍存在很大差异。这是因为巩膜瓣/隧道形成部位的微小差异,以及由于置于巩膜瓣/隧道中的襻长度不同而导致的襻张力变化,都可能改变人工晶状体的有效位置,并导致显著的残余屈光不正,尤其是因人工晶状体倾斜引起的柱面散光。我们的技术旨在减少SFIOL植入术后的残余屈光不正。这是通过术中像差测量并相应调整襻以在术中实现最小屈光不正来实现的。