This is a beta course, so its structure, chapters, and examples may continue to change.散光 (Astigmatism) This article is being translated. Please check back soon. Previous远视 (Hyperopia)远视不等于老花，了解远视的特点和影响。Next老视 (Presbyopia)随着年龄增长，眼睛调节能力下降带来的老花眼问题。
