Corneal endothelium is embryologically derived from the following structure:
Derivatives of neural crest in eye: Corneal stroma, keratocytes and endothelium Sclera Trabecular meshwork endothelium Iris stroma Ciliary muscles Choroidal stroma Pa of the vitreous Uveal and conjunctival melanocytes Meningeal sheaths of the optic nerve Ciliary ganglion Orbital bones Orbital connective tissue Connective tissue sheath and muscular layer of the ocular and orbital vessels Ref: Parsons' Diseases of the Eye By Ramanjit Sihota & Radhika Tandon, 21st edition, Page 5.
Neural crest
Ectoderm
Mesoderm
Endoderm