Caracterización epidemiológica y tomográfica de las membranas epirretinianas en nuestra área

Abstract

Introduction: Epiretinal membranes are produced by the formation of a fibrocelular tissue on the retina surface. In almost 60% cases, it is an idiopatic pathology. Epiretinal membranes (ERM) produce AV decline as a result of increased retinal thickness, elevation of the fovea and opacity of the MER. However, multifocal electroretinography studies (ERGm) have demonstrated alterations at the level of the outer and inner retina, these alterations may be responsible for the decrease in AV. Materials and Methods: We conducted a retrospective study of 47 patients with a diagnosis of MER by means of optical coherence tomography (OCT). We carried out a study of macular cube 512 x 158 mm, setting different parameters to study thicknesses and morphological aspects so as to try to correlate these with their AV. Statistical analysis was performed using SPSS IBM Staticts. Results: Transversal study of 49 eyes in 47 patients with a mean age of 71.35 years (44-86). 55% were male and 45% female. We obtained a mean VA of 0.46±0.29 and 18 pacients had a previous intraocular surgery. We see a higher VA loss when the affected area was the outer retina. Conclusion: Based on our observations, those membranes that exhibit an altered level of the area of the photoreceptors, structurally altering the outer retina and with higher retinal thickness, appear to correlate with a greater decrease in visual acuity.