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[摘要]
中心性浆液性脉络膜视网膜病变(CSC)于1866年首次报告,目前已认识到是继年龄相关性黄斑变性、糖尿病黄斑水肿和视网膜静脉阻塞之后第4位常见的黄斑液体渗漏性病变。虽然在大多数病例具有自限性,但在慢性CSC患者可引起外层视网膜萎缩及脉络膜新生血管,严重损害视力。以往CSC一直被列为黄斑病,或累及黄斑的获得性疾病,但借助于眼底成像技术的快速发展和应用,这一概念已经改变。自2013年起,在眼底病权威著作中已将CSC列为脉络膜血管/Bruch膜疾病,或脉络膜病。CSC属于一种厚脉络膜病的常见表现型。CSC的发病机制在于脉络膜血管扩张瘀滞、重塑及涡静脉间吻合,致使脉络膜毛细血管静脉压升高,进而造成血管、视网膜色素上皮层及视网膜外屏障损害,引起黄斑液体渗漏。但引起脉络膜血管异常的危险因素或原因尚未阐明。目前的干预策略集中在消除黄斑积液,而对消除病因或危险因素尚无明确疗法。因此,对CSC的病理生理学和病因治疗值得更多的关注。
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[Abstract]
Central serous chorioretinopathy(CSC), first reported in 1866, is now recognized as the fourth most common macular fluid leakage disease after age-related macular degeneration, diabetic macular edema, and retinal vein occlusion. Although self-limiting in most cases, chronic CSC can cause the outer retinal atrophy and choroidal neovascularization, resulting in serious visual impairment. CSC used to be classified as a macular disease, or an acquired disease involving the macula. Thanks to the rapid development and application of fundus imaging technology, this concept has changed. Since 2013, CSC has been listed as choroidal vessel/Bruch's membrane disease, or choroidal disease, in the authoritative retinal books. CSC now belongs to a common phenotype of pachychoroidal diseases. The pathogenesis of CSC lies in choroidal vessel dilation, venostasis, remodeling and anastomosis between vortex veins, resulting in increased venous pressure and damage in choroidal capillaries, retinal pigment epithelium and outer blood retinal barrier, and then macular fluid leakage. However, the risk factors or causes of choroidal vessel abnormalities have not been elucidated. Current intervention strategies focus on eliminating macular fluid, and there is no effective treatment for eliminating etiology or risk factors. Therefore, the pathophysiology and etiological treatment of CSC deserve more attention.
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