No, i don't think looking at computer too long makes people go blind. But looking at computer too long will causes my discomfort of your eyes and make your vision more serious. Usually, after long time seeing computer, you will feel eye tired, eye strains even eye pain. So, you shall take a regular break when you look at computer.
It will not make you go blind or be affected the glaucoma. But it will produce influences on your vision after a long time in front of computer to work or study. Your eyesight may go down. It is easy to get the myopia and even accentuate that situation. So we suggest that you'd better not sit in front of computer more than 4 hours.
Absolutely no, you can not be blind because of looking at computer too long. Because there are many people whose job are connected with the computer, and they have to face with the computer everyday. But they are still fine about their eyes. So you don't have to worry about your eyes too much. But on the other hand, you also should control your time of watching computer. Because if you have been watching computer in a long time, it will make some pressure to your eyes and can damage your eyes easily. Then it can also lead to a lot of vision problems.
Looking at computer too long won't make you go blind but concentrating on computer for a long time is definitely harmful to the eye. First of all, the extremely nervous nerve can make eye swollen and the functionality of optic nerve chronic will decrease. Furthermore, using eyes for a long time will lead to the development of axial myopia. In addition, the reduction of the action of blink of eyes can make the eye lack of lubrication and protection. According to statistics, the number of normal people's blink about 15 times per minute, but when look focused, it is only 2 or 3 times, which can makes too much evaporation of ocular surface tear causing that the eye can not get timely supplement. As time passes on, it will cause the inflammation of the eye surface.
Sitting in front of the computer for a long time, people tend to feel astringent eye, blurred vision, these are the symptoms of dry eyes syndrome. German medical experts warned that people should pay attention to this disease, or the chronically ill is easy on the eye injury, even blindness. So, you'd better let the eye have a rest once working for one hour with the eye, or you can buy a radiation protection glasses, I believe it is helpful to you.