From "Star Trek: Operation -- Annihilate! (#1.29)"
Mr. Spock, regaining eyesight would be an emotional experience for most. You, I presume felt nothing?
Quite the contrary, Captain, I had a very strong reaction. My first sight was the face of Dr. McCoy bending over me.
Hm, 'tis a pitty brief blindness did not increase your appreciation for beauty, Mr. Spock.