We report a case of binocular retinitis pigmentosa (RP) with completely different visual acuity between 2 eyes, which may be contributed by the presence of cilioretinal arteries (CRAs) in 1 eye. A 66-year-old female patient complained of blurred vision after binocular cataract surgeries. Examinations revealed her right eye had 20/25 central visual acuity, but the fellow eye only had light perception. Subsequent fundus photography of both eyes firmed the diagnosis of binocular RP. However, there were some significant differences in retinal vessels, which were attenuated in her left eye in contrast to several spared retinal arterioles in the right eye. Optical coherence tomography angiography showed that the spared vessels might be CRAs. Our case provides an evidence that macular blood flow may contribute to the survival of cone cells in RP.
Case Rep Ophthalmol 2021;12:684–689

中文翻译：

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视网膜色素变性患者的视力保存吸管

我们报告了一例双眼视网膜色素变性 (RP) 的病例，两只眼睛的视力完全不同，这可能是由于一只眼睛存在睫状视网膜动脉 (CRA)。一名 66 岁女性患者主诉双眼白内障手术后视力模糊。检查显示她的右眼有 20/25 的中心视力，但另一只眼只有光感。随后的双眼眼底摄影证实了双眼RP的诊断。然而，视网膜血管存在一些显着差异，与右眼的几个保留的视网膜小动脉相比，左眼的视网膜血管变细了。光学相干断层扫描血管造影显示，幸免的血管可能是 CRA。我们的案例提供了一个证据，表明黄斑血流可能有助于 RP 中视锥细胞的存活。
Case Rep Ophthalmol 2021；12:684–689