Hebrews 5:14
“But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.”
I am at that age when the eyes don't see as good as they used to. I am the only one in my family who has never had to wear glasses. In fact, when I was in my early twenties, the eye doctor told me that my eyesight was the best of all his patients.