A Study Evaluating Bilastine Ophthalmic Solution 0.6% in the Conjunctival Allergen Challenge (Ora-CAC®) Model.

Exclusion Criteria

• •must not have any allergies to the study medications
• •must not have any ocular or non ocular condition that investigator feels will interfere with study parameters
• •must not have used immunotherapy in the last 2 years
• •must not have used an investigational drug or device in the past 30 days or concurrently enrolled in another investigational trial