Fig. 2

The meibomian gland at one-week postnatal A meibomian gland (MG) extends in the tarsal plate (TP) along the posterior border of the eyelid (arrowhead) (Hematoxylin and Eosin (H&E)). B The central duct of the MG (asterisk) obstructs with multilayered squamous epithelium (H&E). C The MG opens at the orifice (arrowhead) onto the free margin of the lid (arrow) close to the posterior border of the eyelids. The keratin lamellae (asterisk) are present at the terminal part of the central duct (Crossmon’s Trichrome). D Semithin section in the acini of the MG that filled with meibocytes (asterisk) (toluidine blue). E Semithin section in the meibocytes that accumulate of the lipid vacuoles inside it and appear as foamy cytoplasm (arrowheads) (toluidine blue). F The semithin section in the acini shows that the basal cells (bc) appear signs of mitosis (arrow). The connective tissue (CT) between the cells contains fibroblasts (black arrowhead) and myoblasts (red arrowhead) (toluidine blue)