Cornea-Bowman’s Membrane

Bowman’s membrane ( anterior limiting lamina ) stretches underneath the sub epithelial basal lamina. It appears homogeneous in light microscopic im-ages and is about 8–14 μm thick . Bowman’s membrane represents a modified condensed form of the substantia propria corneae. It is free of cells and shows a weakly positive PAS reaction. With 14–17 μm, the collagen fibrils of Bowman’s membrane are thinner than the fibrils of the substantia propria. In addition to the collagen fibrils, the lamina contains a proteoglycan-rich basic substance.

Electron microscopy; magnification: × 42 500

References

Kuehnel, W.(2003). Color Atlas of Cytology, Histology, and Microscopic Anatomy. 4^th edition . Institute of Anatomy Universitätzu Luebeck Luebeck, Germany . Thieme Stuttgart · New York .