Arrangement of the sclerocorneal trabecular system in human fetuses.

By studying the eyes of 20 human fetuses 33-326 mm in length (8 to 36 weeks gestation) with the light and scanning electron microscope we show that the sclerocorneal and the uveal trabecula cannot be considered as independent structures, since embryologically and morphologically they are the sclero-corneo-iridal insertions of the longitudinal fibres of the ciliary muscle.