Optrex Eye Drops for the relief of minor eye irritation, red inflamed eyes, sore irritated eyes, congested eyes, itchy eyes, gritty eyes. Optrex Eye Drops are medicated to clear the redness. It is specially designed to soothe tired and irritated eyes.Optrex relieves eye symptoms of allergies (allergic conjunctivitis) such as hay fever, pet allergies or dust mite allergies. These eye drops relieve red, itchy, puffy, watery eyes and are suitable for all age groups.