Effect of Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) Laser Capsulotomy on Anterior Segment Parameters: A Prospective Observational Study (Code-T0089)
Keywords:
posterior capsular opacification, Nd:YAG laser, anterior chamber depth, intraocular pressure, anterior segment, optical coherence tomography.Synopsis
Introduction: Posterior capsular opacification (PCO), the most common long-term complication following cataract surgery, significantly impairs visual acuity. Nd:YAG laser capsulotomy is a minimally invasive treatment for PCO. This study investigates its impact on anterior segment parameters.
Aims and Objective:
Aim
To evaluate the effect of Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser capsulotomy on anterior segment parameters.
Objectives
Primary Objective:
- To determine changes in anterior chamber depth and angle of the anterior chamber after Nd:YAG laser capsulotomy.
Secondary Objectives:
- To correlate the severity of PCO with change in position of IOL after Nd:YAG laser capsulotomy.
- To determine incidence and severity of anterior chamber inflammation after Nd:YAG laser capsulotomy.
- To correlate between energy used in Nd:YAG laser capsulotomy and size of the opening created with post-laser anterior chamber parameters.
Methods: A prospective observational study was conducted at AIIMS Bathinda, including pseudophakic patients diagnosed with PCO. Anterior segment parameters were measured preoperatively and postoperatively using anterior segment optical coherence tomography (AS-OCT). Data were analyzed with paired t-tests and repeated measures ANOVA.
Results: ACD showed a significant increase post-capsulotomy (p<0.05), attributed to posterior movement of the intraocular lens (IOL). AOD and TISA parameters also exhibited notable improvements, indicating enhanced aqueous outflow. A transient rise in IOP was observed immediately post-procedure but normalized within a week. No major complications such as retinal detachment or cystoid macular edema were reported.
Conclusion: Nd:YAG laser capsulotomy effectively restores visual function and improves anterior segment parameters with minimal risks. Monitoring and appropriate management of transient IOP elevation are crucial for optimal outcomes.
Keywords: posterior capsular opacification, Nd:YAG laser, anterior chamber depth, intraocular pressure, anterior segment, optical coherence tomography.
