Hyperopia, more commonly known as farsightedness, occurs when light is focused behind rather than on the retina. To the eye, close objects appear blurry while objects farther away appear normal. For those with major hyperopia, vision can be blurry at any distance. Far-sightedness affects primarily young children and those over the age of 40, the latter being when more than half the population contracts hyperopia. It can be diagnosed easily with a routine eye exam.

1. Symptoms of Hyperopia

Hyperopia is usually present at birth and is believed to be passed down through generations. It tends to run in families, and symptoms are easy to detect. For those with farsightedness, nearby objects often appear blurry. A person who has hyperopia usually has to squint to see clearly. Eyestrain, burning eyes, and aching in or around the eyes are common with farsightedness, and these people often find working with objects close up, reading, writing, or using the computer produces headaches or irritated eyes.

What is Hyperopiademaerre / Getty Images