Double-blind group comparative trial of sodium cromoglycate eye ointment and placebo in the treatment of allergic eye diseases.

Thirty-one patients with allergic eye diseases were treated three times daily for 4 weeks in a double-blind trial comparing sodium cromoglycate eye ointment with placebo. Patients' and clinician's assessment of symptoms and overall opinions of treatment showed sodium cromoglycate was significantly better than placebo and was well tolerated.