Sinha Rajesh, Bari Aafreen, Anjum Shahnaz
Cornea, Cataract and Refractive Surgery Services, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Indian J Ophthalmol. 2025 Mar 1;73(3):446-449. doi: 10.4103/IJO.IJO_974_24. Epub 2024 Dec 27.
Intrascleral haptic fixation of intraocular lens (IOL) is an extremely useful technique to provide visual rehabilitation in eyes with inadequate capsular support. It requires exteriorization of haptics along with tucking of haptics in the scleral groove preferably and conventionally in the horizontal meridian. In eyes with large corneal diameter, there is difficulty in tucking enough length of the haptics into the intrascleral groove, carrying the risk of slippage of haptics and decentration of IOL. To exteriorize a larger segment of haptic for tucking, we describe a novel technique that involves creation of scleral groove at the posterior limbus and exteriorization of haptic through a small peripheral iridectomy through the posterior limbus. This provides a larger segment of haptic to tuck into the groove that might prevent slippage and decentration of IOL in eyes with megalocornea.
眼内晶状体（IOL）巩膜内触觉固定术是一种极为有用的技术，可用于为囊袋支撑不足的眼睛提供视力康复。该技术需要将触觉部引出，并将触觉部最好常规地塞入水平子午线的巩膜沟中。在角膜直径较大的眼睛中，将足够长度的触觉部塞入巩膜内沟存在困难，存在触觉部滑动和人工晶状体偏心的风险。为了引出更大段的触觉部以便塞入，我们描述了一种新技术，该技术包括在后极部角膜缘处创建巩膜沟，并通过后极部角膜缘处的小周边虹膜切除术引出触觉部。这提供了更大段的触觉部以便塞入沟中，这可能会防止大角膜眼的人工晶状体滑动和偏心。
