Global Allergic Conjunctivitis Market By Type (Seasonal Allergic Conjunctivitis , Perennial Allergic Conjunctivitis , Giant Papillary Conjunctivitis , Vernal Kerato Conjunctivitis , and Atopic Kerato Conjunctivitis), By Application (Antihistamines , Decongestant , Mast Cell Stabilizers , Olopatadine , Epinastine , Nonsteroidal Anti-Inflammatory Drugs , Immunotherapy , Ointments , and Others), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029