Fundus microperimetry in the functional evaluation of surgery of idiopathic macular ruptures by the method of «temporal inverted ILM flap»

Purpose. The aim of the work was to evaluate by fundus microperimetry the functional results of using the technology «temporal inverted VPM flap» in surgery of idiopathic macular ruptures. Material and methods. 95 patients 3 months after successful surgery of end-to-end idiopathic macular rupture (IMR) using the «temporal inverted VPM flap» technology, functional studies were performed on the MAIA microperimeter (Centervue) in the «Expert test» mode with the determination of the fixation point and its fixation stability, retina sensitivity by 3 standard radii (small, medium and large) and in the temporal and nasal areas of the macula. Results. The fixation point in 89 (93,7 %) eyes shifted to the center of the fovea and became stable in 84 (88.4 %) patients. For a small radius, the sensitivity of the retina increased from 17.9 ± 3.21 to 21.1 ± 2.81 (p < 0.05) dB, for an average radius from 20.1 ± 3.11 to 26.1 ± 2.66 (p < 0.05) dB, for a large radius from 20.2 ± 2.97 to 26.9 ± 2.47 (p < 0.05) dB. The sensitivity of the retina in the temporal half of the macula was lower than in the nasal (22.4 ± 2.41 and 25.9 ± 2.37 dB, respectively, p < 0.05). The corrected distance visual acuity (CDVA) increased from 0.07 ± 0.04 to 0.34 ± 0.17 (p < 0.05). Conclusion. Fundus microperimetry is an objective method of functional effectiveness of IMR surgery. The surgical technology «temporal inverted ILM flap» provides more complete preservation of the retina in the projection of the papillomacular bundle, rapid and maximally complete restoration of the sensitivity of the macular area in the postoperative period. Keywords: microperimetry, idiopathic macular rupture, temporal inverted ILM flap, retinal sensitivity, fixation stability