[header] How to prevent nearsightedness [title] Avoid reading in low light. [step] Reading in low light can force you to strain your eyes, which can lead to eye issues like nearsightedness. Make sure you only read books, magazines, and other printed items in bright, well-lit areas. 
[substeps] If you are reading content on your cellphone, make sure the screen is bright so you do not have to strain your eyes. [title] Break up the time you spend looking at screens.