Journal List > J Korean Ophthalmol Soc > v.57(4) > 1010572

Kwon, Lee, Kim, Park, Lee, and Byon: Reproliferation of Idiopathic Epiretinal Membrane after Spontaneous Separation

Abstract

Purpose

To report the reproliferation of membrane after a spontaneous separation in a patient with idiopathic epiretinal membrane (ERM).

Case summary

A 62-year-old woman complained of metamorphopsia in the left eye. Her vision without correction was 0.8. On fundus examination, the epiretinal membrane was covering the fovea with posterior vitreous detachment. Optical coherence tomography (OCT) showed the ERM and thickened macula. Retinal break, intraocular inflammatory disease, and retinal vascular disease were not noted. We diagnosed her with idiopathic ERM and followed up regularly. At month 7, a partial separation of the membrane from the retinal surface was noted. At month 12, complete spontaneous separation of the ERM from the macula except that in the temporal area was accompanied by improvement of vision to 1.0. OCT, showing recovery of the fovea contour. However, her corrected vision decreased to 0.7 at month 17, and the ERM was again observed to cover the macula. Thickening of the ERM progressed further, and her corrected vision decreased to 0.5 at month 21.

Conclusions

Spontaneous separation of membrane is a rare phenomenon in idiopathic ERM. Reproliferation of membrane can develop and induce visual impairment. Therefore, regular examination is recommended in patients with spontaneous separation of membrane.

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Figure 1.
Fundus photograph and optical coherence tomography (OCT) images during the follow-up period. (A) Baseline fundus photograph demonstrates the opaque epiretinal membrane (ERM) covering the fovea. Thickened macula and retinal folding were detected in the baseline OCT images. The central macular thickness was 439 μm. The best corrected visual acuity (BCVA) was 0.8. (B) At 12 months, the ERM was spontaneously separated from the retina. OCT scan shows a scrolled edge of the membrane (arrows) and foveal contour recovery. The macular thickness decreased to 367 μm. BCVA improved to 1.0. (C) At 21 months, reproliferative ERM covered the macula. The macular thickness increased to 469 μm. BCVA decreased to 0.5. (D) Six months after epiretinal membrane removal, retinal folding disappeared, and macular thickness decreased to 392 μm. Her vision improved to 0.9.
jkos-57-682f1.tif
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