title: Bilateral Rhegmatogenous Retinal Detachment during External Beam Radiotherapy.
abstract: Herein, we report a case of nontraumatic bilateral rhegmatogenous retinal detachment (RRD) during external beam radiotherapy for nonocular tumor, presented as an observational case study in conjunction with a review of the relevant literature. A 65-year-old male was referred to our hospital due to bilateral RRD. He underwent a biopsy for a tumor of the left frontal lobe 4 months prior to presentation, and the tumor had been diagnosed as primary central nerve system B-cell type lymphoma. He received chemotherapy and external beam radiotherapy for 1 month. There were no traumatic episodes. Bilateral retinal detachment occurred during a series of radiotherapies. Simultaneous nontraumatic bilateral retinal detachment is rare. The effects of radiotherapy on ocular functionality, particularly in cases involving retinal adhesion and vitreous contraction, may include RRD. Thus, it is necessary to closely monitor the eyes of patients undergoing radiotherapy, particularly those undergoing surgery for retinal detachment and those with a history of photocoagulation for retinal tears, a relevant family history, or risk factors known to be associated with RRD.
authors.affiliation: Department of Ophthalmology, Faculty of Medicine, University of Miyazaki, Miyazaki City, Japan.
authors.forename: Takako
authors.initials: T
authors.lastname: Hidaka
authors.affiliation: Department of Ophthalmology, Faculty of Medicine, University of Miyazaki, Miyazaki City, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Chuman
authors.affiliation: Department of Ophthalmology, Faculty of Medicine, University of Miyazaki, Miyazaki City, Japan.
authors.forename: Nobuhisa
authors.initials: N
authors.lastname: Nao-I
keywords: Bilateral rhegmatogenous retinal detachment; Nonocular tumor; Radiotherapy; Side effects