Drops that are preservative free are preferred for allergic eyes. Such drops come in unit dose vials, small tubes that are opened for use that day and then discarded. Generally helpful routines for contact lens users include use of peroxide neutralizing solutions, preservative free eye drops, and hypoallergenic makeup. Makeup should not be allowed to flake into the eye as occurs with excess application along the margin of the eyelids. Dusty environments and pets are best avoided if a cause cannot be found.
Swimming frequently causes chlorine and or bromine induced irritation.
Avoid contact with weeping, or open herpetic lesions, such as cold sores. Any redness, discharge or irritation of the eye that persists for more than a few days requires examination by an eye specialist. If you are being seen for a red eye be sure to alert your doctor if you have any history of herpes. Recognition of the condition typically involves checking the cornea for lack of sensation as well as examination of the eye under magnification by specialized instrumentation. Early diagnosis will usually result in effective treatment in the form of antiviral medication that will minimize the risk of deeper penetration of viral particles that can damage the eye in subsequent attacks.