part_of part of part of has quality develops from contributes to morphology of opaque camera-type eye organ part sclera http://upload.wikimedia.org/wikipedia/commons/1/1e/Schematic_diagram_of_the_human_eye_en.svg scleral Seko et al demonstrate chondrogenic potential and identify this as connective tissue[DOI:10.1371/journal.pone.0003709]. continuous with the dura mater and the cornea; The sclera forms the posterior five-sixths of the connective tissue coat of the globe. Disease notes: implicated in rheumatoid arthritis. in fish, reptiles and monotremes the connective tissue of the sclera is skeletal Majority derives from NC that surrounds optic cup of neurectoderm; a small temporal portion develops from the mesoderm that contributes to striated extra-ocular muscles and vascular endothelia[Rada&Johnson]. eye mesenchyme neural crest-derived structure tunica fibrosa of eyeball