Keratopigmentation is done with anesthetic eye drops to numb the eyes. Your head is strapped into a harness to keep it still, and a caliper-like device will hold your eyelid open and prevent blinking.
One section covers and protects the whites of the eye (bulbar conjunctiva). The other section covers the inner surface of the upper and lower eyelids (palpebral conjunctiva). Either or both ...