变应性角结膜炎是一类免疫性疾病,是结膜接触到抗原性物质(变应原)而发生免疫增强,引起一系列组织与功能改变的变态反应性疾病。全世界约20%的人患有不同程度的变应性角结膜炎,每个患者的症状和体征有所不同,其主要临床表现有眼痒、结膜充血和流泪等。根据患者的症状和体征不同 Allergic keratoconjunctivitis is a type of immune disease that is an allergic disease that occurs when the conjunctiva comes into contact with an antigenic substance (allergen) and is immunostimulant that causes a series of tissue and functional changes. About 20% of the world’s people with varying degrees of allergic keratoconjunctivitis, each patient’s symptoms and signs are different, the main clinical manifestations of itching, conjunctival congestion and tearing. According to the patient’s symptoms and signs are different