Clinical research of Alesion ophthalmic solution in patients with seasonal allergic conjunctivitis

INTERVENTION: Alesion ophthalmic solution is administered prior to pollen dispersal Alesion ophthalmic solution is administered posterior to pollen dispersal CONDITION: Seasonal allergic conjunctivitis PRIMARY OUTCOME: 1. Change in scores of subjective symptoms (itch sensation, foreign body sensation, congestion, lacrimation, eye mucus); 2. Change in scores of objective symptoms (JACQLQ); 3. Change in patient‐reported outcomes (JACQLQ) SECONDARY OUTCOME: 1. Frequency in use of steroid eyedrops; 2. Patient diary of allergic symptoms INCLUSION CRITERIA: 1. Patients diagnosed as seasonal allergic conjunctivitis due to cedar pollen in the both eyes 2. Allergy test‐positive patients (type I allergy) in the one of the following tests (test result obtained within the past 5 years can be used) : (1) Serum antigen‐specific IgE antibody assey (2) Skin test such as intradermal test and scratch test (3) Rapid antigen test with ImmunoCAP Rapid 3. Patients aged 12 years or older (Parental Consent is required for patients under 20 years old) 4. Sex: male and female