• Kang-Jung Lo, Jin-Han Yang, Hui-Chen Cheng, Hsin-Yi Chang, and Tai-Chi Lin.
• Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.
• Medicine (Baltimore). 2021 Dec 3; 100 (48): e27793.

RationaleProliferative diabetic retinopathy (PDR) may lead to severe visual impairment, and visual field (VF) loss in such patients has been reported. Vitrectomy is performed in PDR cases complicated with either vitreous hemorrhage or tractional retinal detachment to restore their visual acuity. However, its effect on VF defects is limited in data. Herein, we report the recovery of VF defects following vitrectomy in a patient with PDR.Patient ConcernsA 25-year-old female with bilateral PDR and vitreous hemorrhage received 2 monthly intravitreal injections of aflibercept in both eyes. Six months after her last injection, she presented with fibrovascular membrane formation in both eyes and VF defects of -9.02 dB and -20.05 dB in the right and left eye, respectively.DiagnosesProliferative diabetic retinopathy in both eyes.InterventionsThe patient underwent vitrectomy for her left eye.OutcomesAlthough her visual acuity did not improve as expected, results from the Humphrey visual field analyzer showed notably improvement of her left eye (-9.05 dB) after the surgery.LessonsVitrectomy potentially allows recovery of VF defects in patients with PDR.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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