Contrast Sensitivity and Visual Acuity Before and After Nd:YAG Capsulotomy in Patients with Posterior Capsular Opacification: A Prospective Study
Published: March 1, 2020 | DOI: https://doi.org/10.7860/JCDR/2020/43120.13590
Ritica Mukherji, Pradeep Sune
1. Resident, Department of Ophthalmology, Datta Meghe Institute of Medical Sciences, Wardha, India.
2. Professor, Department of Ophthalmology, Datta Meghe Institute of Medical Sciences, Wardha, India.
Correspondence
Dr. Ritica Mukherji,
A-303, Sarve Satyam Aptts, Plot No. 12, Sec-4, Dwarka, New Delhi, India.
E-mail: riticamukherji@gmail.com
Introduction: Posterior Capsular Opacification (PCO) not only affects Visual Acuity (VA) but also Contrast Sensitivity (CS). Although main motive of performing Neodymium: Yttrium-Aluminium-Garnet laser (Nd: YAG laser) remains improvement in VA, an added benefit of improved contrast sensitivity makes the patient more satisfied in terms of quality of vision.
Aim: To evaluate the changes in VA and CS before and after Nd:YAG capsulotomy.
Materials and Methods: This was a hospital based prospective study conducted over a period of six months. Thirty five patients with PCO after uncomplicated cataract surgery were evaluated for VA and CS using Snellen’s chart and Pelli-Robson chart respectively. Nd:YAG capsulotomy was done in one eye and patients were followed up on 4th week and the same parameters were measured.
Results: There was an improvement in VA in the range of 6/12-6/9 and the patients with Grade 3-4 of PCO were found to have CS in the ranges of 0.60-1.05 and 0-0.45 with the singular exception of one patient with CS in range of 1.20-1.65.
Conclusion: Nd:YAG capsulotomy in patients with PCO following uncomplicated cataract surgery results in an improved visual outcome not only in terms of VA but also in terms of CS. There was a significant difference in pre-laser CS based on the grade of PCO.
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