A HISTOMORPHOLOGICAL STUDY OF THE ORBITAL (RETROBULBAR) PORTION OF THE OPTIC NERVE IN ONE HOMPED CAMEL

Document Type : Research article

Authors

Dept. of Anatomy and Histology, Faculty of Vet. Med., Assiut University,

Abstract

The nerve fiber layer increases gradually in thickness as it reaches the optic disc where it ranges 563-750 um. The optic nerve gains its mayelin sheath while the axons had passed through the scleral layer of the intraoculer portion of the optic nerve. The diameter of op < /strong>tic nerve is about 5.0 mm just behind the globe. The myelin sheath is relatively thin rostrally and increases in thickness caudally where the axons are demonstrated apart from each other. The pia mater is relatively rich in elastic fib ers, and sends few fine septa in the texture of the optic nerve. There is no central connective tissue band, but the p < /strong>ial septa decrease in thickness towards the center of the optic nerve.

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