What是屈光不正

Aug 08, 2021 Source: Cainiu Health
Disease description:

My child has been rubbing his eyes frequently over the past few days. He also spends a lot of time using smartphones and tablets, and I’m concerned about potential vision problems. After taking him for an examination, the doctor diagnosed him with refractive error. I’d like to know: What exactly is refractive error?

Doctor's answer (2)
Dr. Jia Xinguo
您好,当眼睛处于调节静止时,外界的平行光线,一般认为来自5米以外的平行光线经眼的屈光系统后,恰好在视网膜黄斑中心凹聚焦,这种屈光状态称为正视,也就是正视眼的远点为无限远。如果不能在视网膜黄斑中心凹聚焦,将不能产生清晰的物像,称为非正视,或者叫屈光不正。希望以上回答能够帮到您,祝您身体Health。