Baskaran Prabu, Ganne Pratyusha, Bhandari Sahil, Ramakrishnan Seema, Venkatesh Rengaraj, Gireesh Prashant
Department of Vitreo Retina, Aravind Eye Hospital, Puducherry, India.
Department of Cornea & Refractive Surgery, Aravind Eye Hospital, Puducherry, India.
Indian J Ophthalmol. 2017 Aug;65(8):747-750. doi: 10.4103/ijo.IJO_296_17.
The most challenging step in sutureless scleral fixation of intraocular lens (SFIOL) is exteriorization of haptics. The conventional handshake technique has a learning curve since it involves intraocular handing over of haptics from one forceps to another. Here, we describe "extraocular needle-guided haptic insertion technique" (X-NIT), a novel technique of exteriorizing haptics that totally eliminates intraocular manipulations. This method involves sequential introduction of two bent 26-gauge needles through the sclera (pars plicata zone) into the eye which are brought out through a sclerocorneal wound. The intraocular lens haptics are threaded through these needles and exteriorized. Nineteen consecutive patients underwent surgery by this technique. There were no intraoperative complications. The mean best-corrected visual acuity (BCVA) of these patients at 1-month follow-up was 0.5 ± 0.3 (logarithm of the minimum angle of resolution) with 18 of 19 eyes showing one or more lines of improvement in BCVA. X-NIT is a safe, easy, cost-effective, and highly reproducible technique, especially for beginners.
眼内晶状体无缝巩膜固定术(SFIOL)中最具挑战性的步骤是襻的外置。传统的握手式技术存在学习曲线,因为它涉及在眼内将襻从一把镊子交接给另一把镊子。在此,我们描述“眼外针引导襻插入技术”(X-NIT),这是一种襻外置的新技术,完全消除了眼内操作。该方法包括通过巩膜(皱襞部区域)将两根弯曲的26号针依次插入眼内,并通过角巩膜伤口引出。将人工晶状体襻穿过这些针并进行外置。19例连续患者接受了该技术的手术。术中无并发症。这些患者在1个月随访时的平均最佳矫正视力(BCVA)为0.5±0.3(最小分辨角对数),19只眼中有18只眼的BCVA提高了一行或多行。X-NIT是一种安全、简便、经济高效且高度可重复的技术,尤其适合初学者。