The purpose of this study is to evaluate the efficacy and safety of an anti-allergy drug with a contact lens compared to placebo in preventing ocular itching associated with allergic conjunctivitis

Inclusion Criteria:

• history of ocular allergies and a positive skin test reaction to cat hair, cat dander, grasses, ragweed, and/or trees within the past 24 months; successful soft contact lens wearer who has frequently worn contact lenses for at least one month or more

Exclusion Criteria:

• active ocular infection; clinically significant blepharitis; follicular conjunctivitis; pterygium; narrow angle glaucoma; dry eye syndrome; ocular surgery within past 6 months; pregnancy or lactation