Estimation of Mean Nd: Yag Laser Capsulotomy Energy Level for Posterior Capsular Opacification- Our Experience Of 76 Patients In Rural Setup.

• MANIKA SHARMA,  
• BHAWNA CHAWLA,  
• KANAV GUPTA,*  
• B K Gupta

Abstract

Aim: The aim of this study is to determine the Nd:YAG laser capsulotomy energy level in millijoules (mJ), required to achieve a clear visual axis in patients diagnosed with posterior capsule opacification (PCO). Background: Posterior capsular opacification (PCO), commonly known as "after cataract" or secondary cataract, is a frequent complication following cataract surgery with intraocular lens (IOL) implantation. It occurs when lens epithelial cells proliferate, migrate, and transform into fibroblasts, leading to the formation of an opaque secondary membrane. PCO can cause vision impairment, glare, and monocular diplopia by obstructing or scattering light. Early treatment with Nd:YAG laser capsulotomy has improved outcomes, though complications remain a concern. Material and methods: The study comprised 76 eyes of patients who had undergone cataract surgery via routine extracapsular cataract extraction (ECCE) or phacoemulsification with intraocular lens implantation. All patients presented with posterior capsule opacification and underwent Nd:YAG capsulotomy at the Department of Ophthalmology, N.C. Medical College, Panipat, between January 2023 and December 2023. Results: Out of the 76 eyes treated for posterior capsular opacification (PCO) with Nd:YAG laser, the maximum energy required ranged from 1.2 to 10.0 mJ, with a mean of 2.9 mJ. The range of pulse shots varied from 4 to 34, with a mean of 14, which falls within a safe range, thereby minimizing the rate of complications. Conclusion: The Nd:YAG laser treatment is indeed an effective method for improving vision hindered by posterior capsular opacification (PCO). However, it's important to note that it's not without complications. Therefore, it's advisable to be mindful of the energy level used during treatment to prevent any potential damage to ocular tissues and minimize the risk of complications. Keywords: Posterior capsule opacification, visual axis, Nd:YAG laser capsulotomy, energy level.

Keywords

Posterior capsule opacification, visual axis, Nd:YAG laser capsulotomy, energy level.