The following ocular structure is not derived from surface ectoderm
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:
Crystalline lens
Sclera
Corneal epithelium
Epithelium of lacrimal glands
Anatomy, Development and clinical examination