<prompt> All are mesodermal in origin exceptDilator pupillaeChroidIrisCiliary body  <response>: EMBRYOLOGY OF EYE Surface ectoderm: S-Skin of eyelidsappendages L-Lens L-Lacrimal gland E-Epithelium of corneaconjunctiva Neuroectoderm: R-Retina O-Optic stalkoptic nerve M-Muscles of irissphincter and dilator pupillae E-Epithelium of irisciliary body secondaryteiary vitreous Neural crest: Neural- optic nerve coverings myelin sheathby oligodendrocytes ciliary ganglion melanocytes Mesenchymal- cornea except epithelium of cornea sclera except temporal sclera orbital bones Trabecular meshwork Schlemms canal Ciliary body muscles Irisciliary body stroma Mesoderm; Temporal sclera Blood vessels Extraocular muscles Primary vitreous Ref: Human Embryology, Inderbir Singh, 10th edition, page no: 113 