opticrom allergy 2% w/v eye drops solution relieves & treats itchy, red, irritated, puffy & dry eyes caused by allergies not just during the spring & summer months but all year round (allergies that cause eye symptoms include hayfever, house dust mite allergy & pet dander allergy as well as reactions to other particles). opticrom allergy eye drops contain an active ingredient called sodium cromoglicate, which is a type of medicine called an anti-allergic. sodium cromoglicate works by preventing the release of natural substances in your eyes that can lead to an allergic reaction. opticrom allergy eye drops are easy to use. just place one or two drops into each eye up to four times a day, or as your doctor advises. always read the patient information leaflet before use. please speak to your doctor or a pharmacist before using opticrom allergy eye drops if you’re pregnant or breastfeeding. sodium chromoglicate may cause temporary blurring of vision. if this happens, do not drive or operate machinery until your vision has returned to normal., prevents & relieves itchy eyes, for indoor & outdoor allergies, contains sodium cromoglicate, not suitable during soft contact lens use