I have worn glasses and contacts for many years now. During these years when I need to go in for checkup I say, “I need to go to the eye doctor.”  However when I need to get my teeth cleaned I don’t say, “I need to go to the teeth doctor.” Instead I say, “I need to go to the dentist.” The eye doctor you visit for a checkup is called an Optometrist. Why don’t people call them by their name? Just a little interesting thing I have noticed.