Convergence InsufficiencySunil Kumar Singh, Akhilesh Mandal, (B.Optometry), 2012-2015

Sankara College of Optometry, Chitkara University

Introduction: Convergence Insufficiency (CI) is the leading cause of eyestrain, blurred vision, double vision, and/or headaches. Convergence insufficiency occurs when your eyes don't work together while you're trying to focus on a nearby object.

Case details: 14YRS/M, visited sankara eye hospital with chief complains of frontal and temporal headache during near work and mobile use. No significant ocular, Systemic and family history and birth history was normal.

Clinical Examination : Visual acuity was 6/6, N6 in B.E, Refraction under fogging: + 0.50DS (both eyes). And after dilation objective refraction was found to be +0.75 in both the eyes.

Orthoptic evaluation after 2 days was found to be exophoria for distance and near, NPC and NRA was also low with problem in vergence facility with base out prism and during binocular accommodative facility patient had difficulties with plus lens too.

Diagnosis: Convergence insufficiency

Management: Vision therapy

Discussion: The studies conducted by CITT investigator group have shown that the only treatment for CI was office vision therapy for 45-60 minute weekly and was more effective than placebo vision therapy. In present case also patient symptoms and diagnostic parameters improved to normal after 2 weeks of office therapy.

Conclusion: CI more common in young patients especially those engaged in near work. Therefore orthoptic examination in all cases of eye strain and headache is essential.

Reference: Scheimanm, Rouse M and Kulp MT, et al. Treatment of convergence insufficiency in childhood. A cument prespective optom vis sci 2009 may; 86(5): 420-428

Acknowledgement: 1. Sankara Eye Hospital and college of optometry2. Chitkara University