Incidence of macular displacement after rhegmatogenous retinal detachment using ultra-widefield fundus autofluorescence

Purpose The incidence of retinal displacement after rhegmatogenous retinal detachment (RRD) surgery is variable and its clinical consequences are unclear. The aim of this study was to assess the incidence and clinical features of retinal displacement after RRD surgery by using ultra-widefield (UWF) imaging. Methods Retrospective observational study including all consecutive patients who underwent RRD surgery at the Rothschild Foundation Hospital. Postoperative data included the visual acuity and symptoms of visual impairment. Macular retinal displacement occurrence and its features were assessed and measured by using the autofluorescence images. Results A total of 123 eyes were included. UWF fundus autofluorescence revealed the presence of macular retinal displacement in 14 (11%) eyes. All displacements were inferior, with a mean angle of 3.8°. Patients with and without macular displacement did not differ in postoperative visual acuity. The retinal detachment extent and preoperative macular involvement were not significantly associated with the occurrence of retinal displacement. Conclusion In this representative cohort of eyes that underwent RRD surgery with systematic screening for postoperative retinal displacement by UWF fundus autofluorescence, 11% of eyes experienced an inferior retinal shift. As in other cohorts, the presence of metamorphopsia was not associated with the occurrence of retinal shift.