中心性漿液性脈絡網膜症，中心性滲出性脈絡網膜症と屈折

Central serous retinochoroidopathy, central exudative retinochoroidopathy and refraction

　31〜59歳の中心性漿液性脈絡網膜症（CSR）88例（男性75例，女性13例）と20〜49歳の中心性滲出性脈絡網膜症（CER）9例（全例女性）について，屈折を調べた。CSR群では，正視〜＋2.0Dに分布する割合が患眼で66％，健眼で54％と対照群より高く，屈折の平均値を比較すると患眼，健眼のいずれにおいても対照群と比べ有意に遠視傾向にあった。強度近視眼ではすでに存在している広範囲の脈絡膜萎縮がCSRを生じにくくさせていると考えられた。CER群では患眼の屈折は-1.5D〜-8.25Dであった。強度近視の症例が2例含まれていたが，検眼鏡所見と螢光眼底撮影ではコーヌスや豹紋状眼底などの眼底の近視性変化は強くなく，CER群の脈絡膜の構築を眼底の近視性変化から推察するといずれも軽度から中等度の折視と同等と考えられた。

We examined the refraction in 88 cases of central serous retinochoroidopathy (CSR) (75 males and 13 females), aged 31 to 59 years. We also examined the refraction in 9 cases of central exudative retinochoroidopathy (CER) (all females), aged 20 to 49 years.

In the CSR group, 66% of the affected eyes and 54% of the fellow eyes were emmetropic or required correction of up to +2.0 diopters. The average refraction in both affected eyes and fellow eyes revealed a significant shift toward hyperopia as compared with the control group. In severe myopia, preexisting extensive choroidal atrophy seems to play a role in preventing the occurrence of CSR.

In the CER group, refraction of the affected eyes ranged from -1.5 to -8.25 diopters. In the cases requiring correction of -6.0 diopters and -8.25 diopters, myopic changes in the fundi such as conus and tigroid, as seen with ophthalmoscopy and fluorescein angiography were not prominent. The choroidal structure of the CER group as inferred from myopic changes of the fundi seemed to be equivalent to that of slight to moderate myopia.