, There can be several reasons for eye redness. Most common would be because you have been rubbing them. This is because you have been looking at computer screens, TV, and anything that emits light for a prolonged amount of time. Your eyes are not used to it and so it irritates their surface and the blood vessels expand and make it red.
Some time ago I also faced eyes redness and experienced pain, then I consulted with a doctor through Ongo Care telehealth. The doctor connected with me immediately because it was like some pieces of mirrors in my eyes. He suggested I change my glass's lens number. After I changed my glasses lens I am better from red eyes and I am not rubbing my eyes.