Actually there is no special vitamins for red eyes. If you have chronic red eyes, it may be a sign of dry eye syndrome. When dry eyes are the culprit of your red eyes, omega-3 fatty acid supplements can help moisturize the ocular surface, decrease dryness and whiten eyes over time. You can eat more fish and walnuts which are high in omega-3 fatty acid. Fish oil supplement is highly recommended if you don't want to eat a lot of fish.
People all know that the vitamin A is good for eyes, because it's a constituent part of eye tissue. So firstly, you should take some vitamin A for release the disease. Besides, research shows that lack of vitamin B2 will lead to red eyes because new blood vessel growth on the front of eyes. So I recommend you to intake adequate vitamin B2 each day. Dry eyes may also cause red eyes. Supplying some omega3 (although it's not vitamin) can alleviate the dry symptom meanwhile the red symptom.
Red eyes are one of the acute infectious eye diseases. But don't worry. It's very easy to recover if you take the doctor's advice and comply well with the treatment. You also need to take notice of your diet. Eat more vegetables and fruits which are rich in vitamin. Vitamin A is one of the essential nutrients for people who have red eyes. Besides, Vitamin B is also very important for your eyes. It can promote the metabolism of your eyes.