But both of these systems share a condition with an allergic basis. And both Intal and an eye medication called Opticrom contain the ingredient sodium cromoglycate. The interesting thing about Intal is that it's not licensed to treat leg ulcers. Rather, it was initially developed by Dr. Roger Altunyan, an asthma sufferer. He tested hundreds of drugs on himself and finally discovered sodium cromoglycate.
Hay fever is a common symptom, usually associated with intense itching of the eyes.
But allergic conjunctivitis can also be caused by an allergic substance such as face powder or hair dye coming into contact with the eyes, or by various drugs used to treat eye conditions. Allergic symptoms occur when mast cells in the mucus membranes of the eyes and nose release histamine in response to allergens such as pollen or dust. It's the release of histamine that triggers the itching, grittiness, redness and wateriness of the eyes. Opticrom eye drops block the release of potent chemicals such as histamine so that the allergic response is actually prevented. Now it can be obtained without a prescription.