Department of Ophthalmology, Beijing Friendship Hospital, Capital Medical University, NO.95 Yong'an Road, Xicheng District, Beijing, 100050, China.
Department of Ophthalmology, Beijing Moslem People's Hospital, Beijing, China.
BMC Ophthalmol. 2020 Jul 11;20(1):281. doi: 10.1186/s12886-020-01563-1.
To report a case of branch retinal artery occlusion (BRAO) secondary to high-altitude exposure and diabetic retinopathy (DR), and to characterize the retinal changes before and after hyperbaric oxygen (HBO) treatment.
We present a case of a 42-year-old man with DR who travelled to Tibet (in China, 3800 m/12467 ft. above mean sea level). The day after the end of his journey, the patient presented with acute, painless visual loss and visual field loss in his left eye. He was then diagnosed with BRAO, which is an acute blockage of blood flow. After HBO treatment, visual acuity and visual field were improved.
High-altitude exposure and DR may be considered as relevant risk factors for BRAO. The ophthalmologist should be aware that the BRAO might be a rare presenting sign of high-altitude retinopathy (HAR), particularly in patients with DR. HBO treatment can be considered as a choice for ophthalmologists on treatment against BRAO.
报告一例因高原暴露和糖尿病视网膜病变（DR）引起的分支视网膜动脉阻塞（BRAO）病例，并描述高压氧（HBO）治疗前后的视网膜变化。
我们报告了一例 42 岁的 DR 患者，他前往中国西藏（海拔 3800 米/12467 英尺）旅行。旅行结束后的第二天，患者左眼出现急性、无痛性视力丧失和视野丧失，随后被诊断为 BRAO，即急性血流阻塞。经过 HBO 治疗，视力和视野均有所改善。
高原暴露和 DR 可能被视为 BRAO 的相关危险因素。眼科医生应该意识到，BRAO 可能是高原视网膜病变（HAR）的一种罕见表现，特别是在 DR 患者中。对于眼科医生来说，HBO 治疗可以被认为是治疗 BRAO 的一种选择。
