上层巩膜炎和巩膜炎是两个不同的疾病,在临床上并不少见,据Williamson(1974年)报告,其发病率为0.08％。由于它们的症状,预后与处理均不尽同,所以对此病的诊断问题不应混淆。据D.D.M.Megavin等氏的研究,巩膜炎患者中有33.3％并有风湿性关节炎,因此可以认为它是全身胶原系统疾 The upper scleritis and scleritis are two distinct diseases that are not clinically uncommon, as reported by Williamson (1974), with a prevalence of 0.08%. Because of their symptoms, prognosis and treatment are not the same, so the diagnosis of the disease should not be confused. According to D.D.M. Megavin et al’s study, 33.3% of patients with scleritis and rheumatoid arthritis, it can be considered as systemic collagen disease