A check-up is a medical examination by your doctor or dentist to make sure that there is nothing wrong with your health.
After the checkup, Dad and the doctor talked and talked!

시력 검사표
My sister read the letters on the eye chart.

a person's ability to see
Reading in the dark is bad for your eyesight.

(an illness causing) high body temperature and quick heart-beat
My sister had a high fever. She is sick.

glasses
My grandmother has to wear glasses to read a book.

the process or activity of performing an action repeatedly in order to improve a skill
My soccer team practiced every day to win the game.