Melanocytes in conjunctiva are derived from
Neural ectoderm : Retina with its pigment epithelium Epithelial layers of ciliary body Epithelial layers of iris Sphincter and dilator pupillae muscles Optic nerve (neuroglia and nervous elements only) Melanocytes Secondary vitreous Ciliary zonules (teiary vitreous) Reference : A K KHURANA OPHTHALMOLOGY, Edition4 , Page-10
Neural ectoderm
Surface ectoderm
Mesoderm
Neural crest
Anatomy, Development and clinical examination