目的：观察睡眠呼吸暂停综合征（Sleep apnea syndrome, SAS）患者睡眠前后黄斑厚度的改变。

方法：选择 2003 年 8 月至 2007 年 1 月经确诊的在我院门诊和住院部治疗的 SAS 患者共 32 例（63 只眼），分别在上午 11:00 ～ 12:00（睡眠前）及患者晨起 20 ～ 30 分钟内（睡眠后）采用相干光断层扫描仪（Optical Coherence Tomography, OCT）进行黄斑中心凹厚度的测量。

结果：睡眠前黄斑中心小凹平均视网膜厚度为（123.00 ± 19.98）μm，睡眠后黄斑中心小凹平均视网膜厚度为（134.25 ± 19.92）μm。睡眠后黄斑中心凹厚度比睡眠前厚度增加（11.25 ± 9.04）μm，95% 可信区间为（8.98，13.53）μm，差异有统计学意义（t = 9.878，P < 0.05）。

结论：睡眠呼吸暂停综合征患者睡眠时的缺血缺氧可以导致黄斑视网膜的水肿增厚。

Purpose: To observe the changes of macular thickness in patients with sleep apnea syndrome (SAS) before and after sleep.

Methods: Thirty-two patients (63 eyes) diagnosed as SAS from August 2003 to January 2007 were enrolled. Macular thickness was measured using Optical Coherence Tomography (OCT) at 11:00 ~ 12:00 evening (before sleep) and 20 ~ 30 minutes after sleep, respectively.

Results: The mean macular thickness was (123.00 ± 19.98) μm and (134.25 ± 19.92) μm before and after sleep, respectively. The mean difference was (11.25 ± 9.04) μm before and after sleep (t = 9.878, P < 0.05), 95% CI (8.98, 13.53) μm.

Conclusions: The macular thickness of SAS is increased in SAS patients, which may be due to anoxia of SAS.