There are a couple of things you can when you are spending a lot of time staring at a computer screen every day:
Blink
Blinking more often helps moisture your eyes better, you’d be surprised by how much this little thing can do
Take Small but regular breaks
Apply the 20–20–20 rule:
Taking a break also helps will actually also help you study better
Use a Blue Light Protection Software
You can try a software like Iris:
It will not only reduce the Blue Light of your monitor (which basically prevents you from having a nice sleep) but is also the only program that can completely remove PWM Flicker from monitors (which makes your eyes hurt and become red).
I suggest you at least give it a shot and see the difference