Fig.1 The pigment epithelium of rabbit retina. N:nucleus of pigment epithelial cell;PG:pigment granule (melanin granule);P:plasmalemma invagination;M:mitochondria;C:capillary of choroid.

• 图1家兔视网膜色素上皮N：色素上皮细胞核；PG：色素颗粒；P：质膜内褶；M：线粒体；C：脉络膜毛细血管。