Hello, Welcome to Healthcaremagic. From your query i understood that you are suffering from Chronic red eye. You are getting red eye because Blood vessels on white area (Sclera and conjunctiva ) are inflamed and irritated. Have your blood pressure? Hypertension may be a cause for your long standing red eye? Open angle Chronic glaucoma may cause red eye . So please check your Ocular pressure with tonometer. Idiopathic Uveitis ( inflammation of middle layer of eye) also cause red eye. Some times vitamin deficiency can cause chronic red eye. Vitamin C deficiency Vitamin B2 Riboflavin deficiency Vitamin A deficiency- not absorbed in Celiac disease- may be a cause for your red eye. It is better to check these vitamin levels. Simple topical antibiotics is not a treatment for all causes of redeye. So you have to check all these to find out the unknown cause for long term red eye. Hope this helps. Take care.