验光医生是独立的初级卫生保健提供者，负责检查, diagnose, treat, 管理视觉系统的疾病和失调, the eye, 以及相关的结构以及诊断相关的系统性疾病. 验光师通过检查眼睛的内部和外部结构来诊断青光眼等眼部疾病, cataracts, and retinal disorders; systemic diseases like hypertension and diabetes; and vision conditions like nearsightedness, farsightedness, astigmatism, and presbyopia.
