Brief report
Comparison of Visual Function After Epiretinal Membrane Removal by 20-Gauge and 25-Gauge Vitrectomy

https://doi.org/10.1016/j.ajo.2006.03.060Get rights and content

Purpose

To compare the efficacy and safety of 25-gauge vitrectomy with 20-gauge vitrectomy for macular pucker.

Design

Randomized clinical study.

Methods

Sixty-seven eyes (67 patients) with macular pucker were prospectively and randomly assigned to undergo 20-gauge vitrectomy or 25-gauge vitrectomy as a control group. Main outcome measurements consisted of best-corrected visual acuity (BCVA), mean induced astigmatism, total operation time, and postoperative complications.

Results

The mean BCVA at baseline and at one month and six months after surgery was 20/78, 20/62, and 20/42, respectively, in the 20-gauge group, and 20/85, 20/45, and 20/40 in the 25-gauge group. A significant difference in change in the logarithm of the minimal angle of resolution of BCVA between 20-gauge and 25-gauge was found at one month (−0.10 vs −0.269, P < .001), but not at six months (−0.327 vs −0.276, P > .01).

Conclusions

If faster visual improvement is desired, 25-gauge vitrectomy may be preferable to 20-gauge vitrectomy for macular pucker.

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