杆体锥体分离概念及特征  

Conception and features of bacillary layer detachment

作　　者：肖迪[1] 徐奕爽 陈长征[1] Xiao Di;Xu Yishuang;Chen Changzheng(Ophthalmology Center,Renmin Hospital of Wuhan University,Wuhan 430060,China)

机构地区：[1]武汉大学人民医院眼科中心,武汉430060

出　　处：《中华实验眼科杂志》2023年第1期78-83,共6页Chinese Journal Of Experimental Ophthalmology

摘　　要：弓形虫脉络膜视网膜炎患者中存在的外层视网膜光感受器分离首次以杆体锥体分离(BALAD)来命名,表现为光学相关断层扫描(OCT)上光感受器内节在肌样体水平上分离,形成独特的视网膜囊腔。随后许多研究相继报道了不同疾病中存在的BALAD。外层视网膜中,光感受器内节的肌样体区结构相对薄弱,当促进光感受器外节附着在视网膜色素上皮(RPE)上的外向力超过光感受器内节肌样体的抗拉伸强度时,肌样体带分裂,形成BALAD。BALAD具有其独特的多模态影像特征,识别BALAD可以为临床诊断、鉴别以及治疗眼部疾病提供新的思路。本文就BALAD命名的发展过程、解剖结构特征、病理生理机制、多模态影像特征等方面进行综述。The separation of outer retinal photoreceptors in patients with toxoplasmosis chorioretinitis was first named bacillary layer detachment(BALAD),which was manifested as a split at the level of the photoreceptor inner segment myoid creating a distinctive intraretinal cavity in optical coherence tomography.Subsequently BALAD has been reported by many researchers in different diseases.In the outer retina,the myoid is a relatively weak structure in photoreceptor inner segment.When the outward force that promotes the attachment of the photoreceptor outer segment to the retinal pigment epithelium exceeds the tensile strength of the photoreceptor inner segment myoid,the myoid zone splits and BALAD occurs.BALAD has its unique multimodal imaging characteristics,and the identification of it can provide a new idea for the diagnosis,detection and treatment of ocular diseases.This paper reviewed the development of BALAD nomenclature,its anatomical structure,pathophysiological mechanism and multimodal image features.

关 键 词：视锥细胞 视杆细胞 光学相干断层扫描 视网膜脱离 杆体锥体分离 

分 类 号：R774.1[医药卫生—眼科]