Eye and Lens

The lens  consists of lens capsule ( capsula lentis), the lens epithelium ( epithelium lentis), subcapsular epithelium and the lens fibers ( fibrae lentis ). The lens fibers arise from the lens epithelium . Lens fibers are thin cells, 7–10 μm long and about 2- μm thick , containing crystallin. The cells lose their nuclei during development. They form long bands that appear hexagonal in cross-sections. The bands consist of concentric layers of radial lamellae. The lamellae are connected via focal desmosomes (junctional complexes). Interdigitations are present at the corner structures of the hexagonal lamellae. Note the focal desmosomes between intercellular processes. There are about 2300 lamellae in the adult human.

Scanning electron microscopy; magnification: × 4000

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 .