Clinical study on the effects of posterior corneal astigmatism (PA) on Toric intraocular lens (IOLs) cylinder calculation 
Jin Tianru, Li Jingjing, Yu Lan, Zhou Yanwen
Ophthalmology in China . 2023, (5): 397 -402 .  DOI: 10.13281/j.cnki.issn.1004-4469.2023.05.007