後部硝子体膜黄斑症

Posterior vitreous membrane maculopathy

　特発性黄斑部網膜前膜には三つの基本型：円盤状，輪状，偽嚢胞状が存在し，それらが後部硝子体剥離の完成したautopsy眼の黄斑部遺残硝子体膜の基本型とよく対応することを明らかにした．一見複雑な病態も，膜の組成＝遺残硝子体膜と考えれば，一元的に解釈できることを論じた．遺残硝子体膜を主体として多彩な病像を呈する「後部硝子体膜黄斑症」というべき疾患単位が存在することを主張する．

I evaluated a consecutive series of 149 eyes, 119 cases, with idiopathic preretinal macular fibrosis seen over a 4-year period. The series could be classified into 3 types corresponding to our earlier observation of vitreous cortex remnants at the foveal region in autopsy eyes with posterior vitre-ous detachment. The preretinal membranes in the series were either disc-shaped, ring-shaped or pseudocystic. The variable clinical and prognostic features of idiopathic preretinal membrane could be explained with the hypothesis that these membraneswere composed of vitreocortex remnants after pos-terior vitreous detachment.

In accordance with the present interpretation, the clinical entity of idiopathic preretinal macular fi-brosis would more aptly be named as posterior vitreous membrane maculopathy. This nomencla-ture implies that vitreous cortex remnants play a major role in the etiology of complex macular lesion of this entity.

Rinsho Ganka (Jpn J Clin Ophthalmol) 41(6) : 585-589. 1987