Clinical study of Nd Yag Laser in the treatment of Posterior Capsular Opacification after Cataract Surgery

Title: Clinical study of Nd Yag Laser in the treatment of Posterior Capsular Opacification after Cataract Surgery

Authors: Selvi K, Mishra P, Manavalan S, Sridevi V, Ramya M, Ramakrishnan G

DOI: https://dx.doi.org/10.18535/jmscr/v4i10.115

Abstract

Background: The Nd YAG laser is a solid-state laser with a wavelength of 1064 mm that can disrupt ocular tissues by achieving optical breakdown with a short, high-power pulse. It is a technique for closed-eye, which is being used in the treatment of PCO. Posterior capsular opacification is caused by proliferation of lens epithelial cells which causes fibrotic changes and wrinkling of the posterior capsule and results in decreased vision, glare. Objective: To study the efficacy and complications of Nd YAG laser in treatment of postoperative posterior capsular opacification.

Material and Methods: This study was conducted in the Department of Ophthalmology Rajah Muthiah Medical College Chidambaram, from Oct 2015 to Sep 2016 on 50 patients with significant PCO, using Zeis VISULAS YAG II. These patients were assessed for post-laser visual acuity and possible complications just after 4hrs, 1day, 2 weeks, 3 months, and 6 months.

Result: Out of 50 patients 27 (64 %) were males and 23 (46 %) were females. During and following Nd YAG laser capsulotomy out of 50 patients 4 patients (8%) developed intraocular lens (IOL) pitting, two patients (4%) developed rise in intraocular pressure (IOP), three patients showed iritis (6%), one patient (2%) developed cystoid macular edema (CME). The best corrected visual acuity (VA) of 6/9 – 6/6 was achieved in 36 eyes (72%).

Conclusion: The Nd YAG laser capsulotomy is a safe, effective outpatient procedure to create an opening in opaque posterior capsule for the improvement in vision.

Key words: Nd YAG laser capsulotomy, posterior capsular opacification, visual acuity.

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Corresponding Author

Selvi K

Department of Ophthalmology,

Rajah Muthiah Medical College and Hospital,

Annamalai University. Annamalai Nagar-608002