✗ The myth everyone repeats
Reading in low light causes permanent vision damage and ruins your eyesight.
✓ What is actually true
Reading in dim light causes temporary eye strain and fatigue but does not cause permanent vision damage or myopia. While poor lighting is uncomfortable and can lead to headaches, the eye naturally adapts to different light levels. There's no scientific evidence that dim-light reading causes lasting refractive changes.
Reception
The receipts 2 sources