"Tuck, we're going to get your eyes checked today."
"No. No eyes checked."
"Yep. They'll take a look at your eyes and make sure they're working right. It won't hurt at all. They'll just play some games with you to make sure you can see, and we'll be all set."
He was not on board. Much later into our morning preparation, he was still agitated and concerned, arguing with me about getting his eyes checked.
Finally, I slowed down the breakfast and get-ready routine. "Tuck, why are you sad?"
He said, "Mommy, I just like my eyes. I don't want to get new ones."
Time to clarify. (No wonder he was concerned.)