Quantitative assessment of the foveal avascular zone using optical coherence tomography angiography before and after surgery for idiopathic epiretinal membrane

Purpose: To investigate, using optical coherence tomography angiography, the foveal avascular zone (FAZar), the FAZ perimeter (FAZp), the acircularity index of the FAZ (FAZai), and the density of vessels surrounding the FAZ (FAZvd) before and after idiopathic epiretinal membrane surgery, and associations of these parameters with postoperative best-corrected visual acuity, letter score gain, and central foveal thickness. Methods: We retrospectively reviewed preoperative and postoperative (sixth month) medical records of 28 eyes of 28 patients who undergone epiretinal membrane surgery and had an intact ellipsoid zone. Results: There were significant increases in best-corrected visual acuity, FAZar, and FAZp and decreases in central foveal thickness and FAZai (all P
Source: RETINA - Category: Opthalmology Tags: Original Study Source Type: research