This is a beta course, so its structure, chapters, and examples may continue to change.屈光不正 This article is being translated. Please check back soon. Chapters近视 (Myopia)远视 (Hyperopia)散光 (Astigmatism)老视 (Presbyopia)Previous眼睛的光学结构了解人眼的结构以及它是如何像照相机一样工作的。Next近视 (Myopia)为什么看远处模糊？了解近视的成因和分类。
