Staring at the computer for too often a long time can lead to two main kinds of eye sight damage. First of all, it will cause eye fatigue. No matter when you are reading or staring at the computer for a long time, it will cause eye fatigue. This is because that the ciliaris muscles continuously contract, which, as time goes by, can lead to near sight. The second harm is caused by the irritation of the blue ray from the computer screen, which can lead to the apoptosis of the optesthesia cells and decrease of eye sight. Besides, this blue ray can also make your eyes feel fatigue. Therefore, to protect your eyes from the damage, you should take regular rest and avoid overuse of eyes, have a break every one hour. You can also try wearing a pair of blue-ray protective glasses when you are working before the computer. In addition, eat more foods which are rich in vitamin C, anthocyanin, and vitamin B1 and so on. These chemicals have good anti-oxygen effect. Also, use eye drops to moisten your eyes, and spread some eyecon on the skins below the eyes to prevent from getting infraorbital dark circle.
If you stare at the computer for a long time, your eyes will be dry. The radiation from the computer will harm your eyes to most degree. You should better not do this, having the rest now and then. Or else, your eyes may get short sighted. You should protect the eyes carefully and wear the computer goggles when you sit in front of the computers.
The most common side effect of staring at computer too long is dry eye syndrome. When you stare at the computer screen too long without blinking your eyes or having a rest, your eyes will be so tired that dry eyes will occur. Apart from dry eyes, glaucoma is the second biggest eye disease caused by visual display terminal operations.