DR. NILESH KUMAR

Dr. ASHISH SHARMA, Dr.Rita Singh

Abstract

A prospective trial was conducted to validate the anterior chamber grading done on the images obtained with a frugal, novel smartphone-based gonio-imaging device by comparing it with slit-lamp gonioscopy. Out of 280 images obtained, 250 were found to be of gradable quality. A single masked physician carried out gonioscopy while another masked physician carried out the gonioimaging. Kappa correlation coefficient was calculated to classify open and closed angles.

The intra-observer agreement (between slit-lamp gonio-evaluation and gonio-imaging grading by device) was 84% with Cohen’s kappa 0.65 signifying substantial agreement. The interobserver agreement between two physicians for grading gonio-imaging using the device was 92.4% with Cohen’s Kappa 0.71 which signified substantial agreement.

Conclusion: A new, frugal innovative smartphone-based gonio-imaging device can be helpful in screening patients for their anterior chamber angle status by obtaining high gradable quality images

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