2. Corneal epithelium
3. Conjunctival epithelium
4. Anterior layers of iris.
Cornea epithelium is formed by surface ectoderm rest of layers are formed by mesothelium (these are endothelium, descemet's membrane, stroma, bowman's layer.
Iris is formed by neuroectoderm - epithelial layers.
Blood vessels of iris derived from mesoderm.
Other questions: Retina, Pineal Gland, Neurohypophysis, CNS neurons, preganglionic neurons derived from Neuroectoderm.
Dilator and sphincter pupillae muscles, ciliary muscle, carotid body, most bones of face, skull except occipital bone, bones of middle ear, pia and arachnoid layer, schwann cells, parafollicular cells , postganglionic neurons and odontoblasts derived from NEURAL CREST.
Extraocular muscles, skeletal muscles of head-neck-trunk, muscles of tongue, vertebrae ribs occipital bone and dura matter are derived from PARAXIAL MESODERM.
actual question which appeared in fmge is
lens is formed from