What caused my bloodshot eyes ?

[chocciechip]

I had a fever a couple of nights ago. We didn't turn on the lights or fumble for thermometers because DS shares a room with us (3mo). But I could feel my eyes felt as if they were bulging and burning. DH said I was burning hot and slightly delirious. The next morning both my eyes were bright red.

I know the fever must have caused this. But how and why? Do high temperatures make blood vessels break? I've never seen it happen before.