Graefes Arch Clin Exp Ophthalmol. 2021 Jun;259(6):1487-1491. doi: 10.1007/s00417-020-05019-6. Epub 2020 Nov 25.

ABSTRACT

BACKGROUND: This study aimed to evaluate the long-term change of postoperative retinal shift after pars plana vitrectomy for macular off retinal detachment.

METHODS: In this retrospective study, patients with retinal shift after pars plana vitrectomy for macula-off rhegmatogenous retinal detachment (RRD) were examined at 3 weeks and 12 months postoperatively. Fundus autofluorescence images were obtained to visualize retinal rotation. Best-corrected visual acuity was measured and metamorphopsia assessed using the Amsler grid.

RESULTS: Nine patients with postoperative retinal shift were included in the study. Retinal shift decreased significantly in these patients, on average by 1.07° (range 0.52-1.62, p = 0.002) after 12 months. However, more patients complained of distorted vision after 12 months (odds ratio for change = 3.0, 95% CI: 0.24 to 157.49). The main reason was the new formation of an epiretinal membrane (odds ratio for change = infinity, 95% CI: 0.41 to infinity). There was no change in visual acuity observed (p = 0.16).

CONCLUSION: Postoperative retinal shift after RRD repair decreases over a 1-year span. While retinal shift is the main cause for metamorphopsia in the early postoperative period, formation of an ERM is the main reason for distorted vision long term.

PMID:33237392 | DOI:10.1007/s00417-020-05019-6