Nearsighted vs. Farsighted

Nearsighted
Nearsightedness can occur if the cornea is curved too much or if the eyeball is too long. Nearsighted individuals have difficulty seeing far-away objects. Example: A child or a young adult who is nearsighted is able to read a book well but has difficulty reading the chalkboard or driving. Nearsighted prescriptions are signified with a minus sign and they increase at intervals (diopters) of 0.25.

Farsighted

People who are farsighted can see far-away objects with no problem, while close up objects are blurry. Farsightedness occurs when light that enters the eye focuses behind the retina instead of on it. A prescription for farsightedness always has a plus sign. Many farsighted individuals only wear glasses while reading or doing something up close. For this reason, reading glasses or computer vision glasses offer a practical solution for people who spend a lot of time concentrating on close-up material, computer work and so on.

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