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In his letter, Dr. Packard states that the recorded incision enlargements might not reflect the true incision size for each injector. It is true that every measurement system has uncertainty, and our study might have been limited by the resolution of the ruler and the stability of the human hand. To mitigate this issue, we used very thin purpose-made F-gauges with rounded edges to prevent incision enlargement. The F-gauges were designed to increase in increments of 0.1  mm (±0.01 mm) to allow precise assessment of the width of the incision.
Source: Journal of Cataract and Refractive Surgery - Category: Opthalmology Authors: Tags: Letters Source Type: research