Study participants
astigmatism, myopia
ASTIGMATISM, MYOPIA
The data were prospectively collected from myopia volunteers who visited Beijing Tongren Hospital from September 2020 to September 2021. The research was approved by the Human Studies Committee at Beijing Tongren Hospital (Beijing, China) in accordance with the Code of Ethics of the World Medical Association (registration number: ChiCTR2100047074). Subjects signed a statement of informed consent prior to their participation in the study. Patient’s inclusion criteria were as follows: (1) patients with myopia not more than − 6D, with corrected visual acuity≧1.0; (2) those having astigmatism with rule and 