Does staring at an iPhone screen at night (or in poor lighting) damage your eyes?

So I have really bad nearsightedness (a fairly strong prescription, kind of thick glasses & I'm only 18) :( and before I go to sleep I have a habit of surfing the web & checking stuff on my iPhone, and when I'm doing this no other light is turned on besides the light from the iPhone screen itself. Will this further worsen my vision (nearsightedness) or is it just a myth? Should I try not to do this during the night? I need REAL answers… Thanks…

It will affect your eyes but not that much but yes it will affect your eyesight.(slowly)

Yes because you are putting your eyes in strain when you're forcing them to look directly at a bright light for hours; considering you have turn the light off which double the brightness of your screen. According to studies, staring at LCD or computer screen for more than 8 hours a day can seriously harm your vision - scientists calls this occurrence, Computer Vision Syndrome.