Generally, nearsightedness first occurs in school-age children. There is some evidence that myopia is inherited. If one or both of your parents need glasses, there is an increased chance that you will too. Individuals who spend a lot of time reading, working or playing at a computer, or doing other close visual work may also be more likely to develop nearsightedness. Because the eye continues to grow during childhood, myopia typically progresses until about age 20. However, nearsightedness may also develop in adults due to visual stress or health conditions such as diabetes. A common sign of nearsightedness is difficulty seeing distant objects like a movie screen or the TV, or the whiteboard or chalkboard in school.
Context:
Dorian goes to the eye doctor to figure out what is wrong with his vision. Ever since he was a child things that were far away seemed very blurry to him but it didn't affect his ability to read or play with friends so it never really bothered him. After the doctor gave him an eye exam he was given a new pair of glasses to correct
Q: Will spending long periods of time reading or working on a computer increase or decrease your chances of becoming nearsighted?