COMPARISON BETWEEN SUBJECTIVE AND OBJECTIVE INTERNAL LIMITING MEMBRANE PEELING AREA DURING EPIRETINAL MEMBRANE SURGERY

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Abstract

Purpose:

To determine the reliability of surgeons in estimating internal limiting membrane peeling area during epiretinal membrane surgery and to evaluate their ability to remove a predetermined internal limiting membrane surface.

Methods:

One senior surgeon and two junior surgeons were asked to reach a target internal limiting membrane peeling surface (ILMPS) with an eccentricity of 1 optic disk diameter (centered on the fovea) in patients undergoing epiretinal membrane surgery. The ILMPS was measured on video recordings during epiretinal membrane surgery with no dye and then after brilliant blue G staining.

Results:

Thirty patients were included. Median (interquartile range) ILMPS was 9.3 mm2 (5.7–16.3 mm2) and 7.4 mm2(3.7–16.4 mm2) before and after brilliant blue G, respectively (P = 0.17). The ILMPS was significantly larger in eyes operated by the senior surgeon than in those operated by the junior surgeons (P = 0.01). The senior surgeon reached the target ILMPS more often than the junior surgeons: 87% versus 47%, respectively (P = 0.02).

Conclusion:

Subjective estimation of the ILMPS with no dye was fair, but this area was larger for the surgeon with greater surgical expertise.

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