The effect of myopia on the position of the ora serrata.

This article evaluated the effect of myopia on the position of the ora serrata relative to the extraocular muscle insertions. In this prospective case series, 11 patients were evaluated during scleral buckling procedures. Intraoperative measurements of the distance from the ora serrata to the muscle insertion in each quadrant were compared to baseline refractive error. The distance between the ora serrata and the muscle insertion increased with increasing myopia superonasally and inferonasally. The surgeon must be aware of the need to position a scleral buckle more posteriorly with increasing myopia to avoid improper scleral buckling position and consequent surgical failure.