There have been multiple speculations that watching TV too long or too much hurts your eyesight. This article is all about myth busting and solving and researching rumors that people have said to be true. This article confirms that watching TV too closely or too long cannot permanently damage your eyesight. Although it cannot cause permanent damage there is still the chance of a minor headache or tired eyes. This was just a myth that many people believe to have been true as well as myself. My mother always used to tell me if I watch TV too much it will cause damage to my eyes. I’m not sure if she was just trying to scare me or if she actually thought it was true.
According to this ophthalmology article watching TV too close wont cause damage to your eyes but if being watched in the dark it can cause eyestrain. Eyestrain can be as small and simple as blurred vision or just simple pain around the eyes. It is said to be more of a child habit that we eventually grow out of. There is no evidence of this being true so scientists must call it a myth.
Source 1: http://www.rnib.org.uk/nb-online/busting-myths-around-eyesight
Source 2: https://www.aao.org/eye-health/ask-ophthalmologist-q/can-close-tv-viewing-damage-eyes