Observation of Ciliary Body Changes during Accommodation Using Anterior OCT
Observation of Ciliary Body Changes during Accommodation Using Anterior OCT
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DOI：
10.2152/jmi.65.60
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发表时间：
2018-02-01
影响因子：
0.7
通讯作者：
Mitamura, Yoshinori
中科院分区：
文献类型：
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作者：
Farouk, Mahmoud Mohamed;Naito, Takeshi;Mitamura, Yoshinori
目的：目的应用眼前节光学相干断层扫描（OCT）评价儿童自然刺激调节过程中睫状体（CB）的解剖学变化。研究方法：本研究是一项前瞻性、观察性、非比较性病例系列研究，包括9名4至10岁儿童（8男1女）的18只眼。睫状体厚度（CBT）在巩膜突后1、2和3 mm处通过前部OCT测量。在调节状态和非调节状态（有睫状肌麻痹）下进行测量。结果如下：在巩膜突后1 mm处调节，平均CBT从751 ± 42 μ m显著增加到818 ± 40 μ m（P < 0.001），在2和3 mm处分别从506 +/- 66降至445 +/- 59 μ m和从290 +/- 54降至240 +/- 50 μ m（P < 0.001）。结论：在调节过程中，睫状体前部增厚，而后部厚度减小。这些结果表明，睫状环肌主要参与调节，而纵肌不参与调节。
Aim: To evaluate the anatomical changes in the ciliary body (CB) during naturally stimulated accommodation in children using anterior segment optical coherence tomography (OCT). Methods : This study was a prospective, observational, noncomparative case series included 18 eyes of 9 children (8 males and 1female) aged from 4 to 10 years. Ciliary body thickness (CBT) wasmeasured temporally by Anterior OCT at 1, 2 and 3 mm posterior to the scleral spur. Measurements were performed in the accommodated state and the unaccommodated state (with cycloplegia). Results : Themean CBT significantly increased by accommodation at 1 mm posterior to the scleral spur from 751 +/- 42 to 818 +/- 40 mu m (P < 0.001) and significantly decreased at 2 and 3 mm from 506 +/- 66 to 445 +/- 59 mu m and from 290 +/- 54 to 240 +/- 50 mu m respectively (P < 0.001). Conclusion : During accommodation, the anterior portion of the ciliary body thickens, while the posterior portion decreases in thickness. These findings imply that the circular ciliarymuscles aremainly involved in accommodation and not the longitudinal muscles.