片眼に網膜剥離を伴ったnanophthalmosの2例

Two cases of nanophthalmos with retinal detachment

　片眼の無裂孔原性網膜剥離を伴う2例のnanophthalmosについて報告した。網膜剥離を伴わない他眼にはそれぞれ視神経萎縮，高眼圧を認めた。症例1にはBrockhurstによる渦静脈周囲強膜半層切除術を行い好結果を得た。更に両症例の網膜剥離眼の螢光眼底写真にみられた網脈絡膜循環の遅延・脈絡膜異常螢光より，網膜剥離の原因は長時間の脈絡膜うっ血による脈絡膜からの漏出と考えた。視神経萎縮眼では脈絡膜への血液流入減少が，高眼圧眼では脈絡膜循環の正常化が網膜剥離を発症しない原因と思われた。

Two cases of nanophthalmos with unilateral non-regmatogenous retinal detachment were reported. The fellow eye of case one showed optic atrophydue to the fracture of the optic canal 10 years ago, and that of case two had high intraocular pressure.

The fluorescein angiogram in both cases showed abnormal findings indicative of damages in retinal pigment epithelium, hyperfluorescence in the cho-roid and delayed circulation in retinal vessels. Ac-cordingly, the etiology of the retinal detachment in both cases was conjectured to be uveal effusion due to the disturbance of choroidal circulation.