Background: According to the World Health Organization, cataracts are the leading cause of blindness worldwide, affecting about 20 million people, and is responsible for 51% of blindness (1, 2) Lifestyle nowadays have become more active, which requires quality of vision. but due to cataract there quality of vision reduces the main purpose of the study is to find out pre and postoperative astigmatism measured with IOL Master to the preoperative astigmatism values and to find out postoperative refractive error in which any spherical value present or not. Method: This study was done in Rotary Eye Institute, Navsari in time period of August 2019 to January 2020. This retrospective and prospective study have included 100 eyes. Patient have undergone detailed history, torch light, subjective refraction, objective refraction, slit lamp examination, and detailed fundus examination. Patient diagnosed with cataract had undergone preoperative cataract evaluation. IOL power have been measured with A-scan and IOL Master and final IOL power was decided. Post-operative spherical power was assessed by subjective test after two month. Pre and post-operative astigmatism was assessed by IOL Master after two month. Result: For comparing preoperative and postoperative astigmatism and postoperative refractive errors, we used “paired T-test”: Tstat 1.83