You may have the tiredness in the eyes after studying for a long time. You should have the good rest for the eyes to get rid of the hurting feeling. In addition, you could use some eye drops to release the symptom. You could use the warm compress to make the eyes feel comfortable. You should protect the eyes carefully.
It is normal to feel eye hurt after long time of study. If you have this situation, it is a sign that your eyes need rest. So, just stop studying and take a good rest. And you can also use some eye drops if you have by your hand. It will help you relieve the tired eyes. If you still feel eye pain after rest a long time, please don't hesitate to visit an doctor to get your eyes checked. I hope you fine.
That may be caused by tiredness, you need to take a break right now. Massage your eyes for a while, then use some artificial tears to smooth your eyes.
But remedy is remedy, you should do something to prevent the hurt. So, do not overuse your eyes, they need relax once a hour, look outside to refresh your eyes and your mind. It'll help you work more efficiently. Eat more vitamin containing food, such as fruits and vegetables.
Well, looks like there is something wrong with your eyes. From my personal experience, it would be common for a student to have such problem. Because your eyes are much too strained and tired without proper rest. So, what I recommend is you should take some breaks during study hours, also, get some green tea is relieve your problem, take more exercise and have a balanced diet would also be useful.