Ocular AllergyOcular Allergy Treatment Practical Impact Trial

Inclusion Criteria:

1. patients age 18 and older with a history of seasonal or perennial forms of allergic conjunctivitis and skin test positive reactivity to seasonal aeroallergens
2. Total Ocular Symptom Score (TOSS) on the day of enrollment of 4 or more.
3. have allergic ocular symptoms for the past week for which they are either treating with ophthalmic agents or have had no treatment.
4. Are willing/able to follow instructions from the study investigator and his/her study staff.
5. Have signed infromed consent approved by Institutional Review Board or Independent Ethics Committee.

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Exclusion Criteria:

1. Active ocular infection;
2. History of retinal detachment, diabetic neuropathy, or any progressive retinal disease;
3. Ocular surgical intervention within three (3) months prior to visit 1 or scheduled during the study.
4. History of unstable, or uncontrolled disease of any nature.
5. Pregnancy or lactation;
6. Have a known hypersensitivity tp LASTACAFT™ (alcaftadine) -