Could The Temporary Blurry Vision And Light-headedness I Experienced While Studying Be Related To Eye Strain Or Something Else?

I was studying using the computer, and my left eye got a little blurry. it looked as if after you look outside the sunny weather and go inside and see the sun mark when you look around which is called photo-bleaching. But the thing is, I didn t go outside and it s not even sunny. Before this, I had some oats and an ashwagandha tablet. I ve eaten oats and ashwagandha tablets before and nothing happened. Then after doing squats and resting my eyes to get the blood flowing, the blurriness went away. But, I also felt light-headed so I ate some rice with fried vegetables. This never happened before. By the way, I am 22 and a college student.