Is there any damage of watching tv on the ceiling with projector?

I see some people watch tv on their bedroom ceiling with a projector, so they can lie down to enjoy movies. It looks pretty good, but I wanna know if there's damage to the eyes or something.
 

Gabe

Member
It will hurt your eyes. Because lying down to look at the picture on the ceiling, it is not easy to keep the human eye on the same level with the image, and the size of the projected picture may be too large and needs to be adjusted by the eyes, thus increasing the pressure on the use of the eyes and increasing the damage to the eyes
 

dian5816

Member
It's harmful to your eyes, and don't watch TV or projector for a long time in a day, no matter what way or postures.
 
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