If you can see objects nearby with no problems, but reading road signs or making out the writing on the board at school is more difficult, you may be nearsighted.
Your eye care professional may refer to the condition as myopia.
Myopia is not a disease, it is an eye disorder, but that does not mean that you have “bad eyes”. It refers to a condition wherein the focusing power of the eye is too high in proportion to the length of the eyeball. This is typically treated with corrective lenses.
Speak to your eye care professional to learn more.