Embryology of Eye

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Precursor Derivatives

Neural crest	Neural ectoderm               (Neural Tube)	Mesoderm
Corneal stroma, keratocytes and endothelium Sclera(maximum portion) Trabecular meshwork endothelium Iris stroma Ciliary muscles Choroidal stroma Part of the vitreous Uveal and conjunctival melanocytes Meningeal sheaths of the optic nerve Ciliary ganglion Schwann cells of the Orbital bones Orbital connective tissue Connective tissue sheath and muscular layer of the ocular and orbital blood vessels	Smooth muscle of the iris(sphincter & dilator papillae) Optic vesicle and cup Iris epithelium Ciliary epithelium Part of the vitreous Retina Retinal pigment epithelium Fibres of the optic nerve            Surface ectoderm Conjunctival epithelium Corneal epithelium Lacrimal glands Tarsal glands(Meibomian,Zeis,Moll) Lens Skin of eyelids & eye lashes	Extra ocular muscles Corneal stroma Sclera(temporal small portion) Iris Vascular endothelium of eye and orbit Choroid Part of the vitreous

         

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              NEET PGMEE

              AIIMS PGMEE

              PGI PGMEE

              JIPMER PGMEE

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