The following ocular structure is not derived from surface ectoderm
High-Yield Explanation
The ocular structure derived from surface ectoderm are The crystalline lens The epithelium of the cornea The epithelium of the conjunctiva Lacrimal gland The epithelium of the eyelids & its derivatives, .viz cilia, tarsal gland & conjunctival glands The epithelium lining the lacrimal apparatus The sclera is derived from the associated paraxial mesenchyme. Reference: