#ophthalmic_vein__vena_ophthalmica  either of two veins that serve the eye; empties into the cavernous sinus
  supertype:  vein__vena  a blood vessel that carries blood from the capillaries toward the heart; all veins except the pulmonary carry unaerated blood
  subtype:  inferior_ophthalmic_vein  a vein that drains a venous network in the floor and medial wall of the eye socket
  subtype:  superior_ophthalmic_vein  a vein that begins at the inner angle of the eye socket and passes through the superior orbital fissure to empty into the cavernous sinus

No statement uses or specializes ophthalmic_vein; click here to add one.