眼瞼温罨法による脈絡膜厚の変化

Changes in choroidal thickness after transpalpebral eyeglobe warming

要約　目的：眼球を加温する前後での中心窩網膜厚と中心窩下脈絡膜厚の報告。対象と方法：健常人10例20眼を対象とした。男性4眼，女性16眼で，平均年齢は26歳であった。上眼瞼を経由して眼球を40℃で10分間加温した。波長掃引光源光干渉断層計で，中心窩網膜厚と中心窩下脈絡膜厚を測定した。結果：中心窩網膜厚の平均値は，加温前203.5μm，加温後202.3μmで有意差はなかった（p＝0.690）。中心窩下脈絡膜厚の平均値は，加温前228.7μm，加温後246.9μmで，有意に増加した（p＝0.0155）。結論：若年の健常人では，眼瞼を経由する眼球加温により，中心窩網膜厚は変化せず，中心窩下脈絡膜厚が有意に増加した。

Abstract.　Purpose：To report changes in foveal and subfoveal choroidal thickness following warming of the eyeglobe. Cases and Method：This study was made on 20 eyes of 10 healthy persons. The series comprised 4 male and 16 female eyes. The age averaged 26 years. The eyeball was warmed by placing an eye-mask of 40℃ on the upper eyelid for 10 minutes. Foveal and choroidal thickness were measured using a swept-source optical coherence tomography. Results：Foveal retinal thickness averaged 203.5μm before warming and 202.3μm after warming. There was no significant difference（p＝0.690）. Fubfoveal choroidal thickness averaged 228.7μm before warming and 246.9μm after warming. The difference was significant（p＝0.0155）. Conclusion：Warming of the eyeglobe induced no changes in foveal thickness and increase in subfoveal choroidal in healthy young persons.