Objective: To study the prevalence, amount and axis of pre-existing corneal astigmatism in patients undergoing cataract surgery. Methods: The study was carried out at a tertiary care ophthalmic institute in Prayagraj, in patients admitted for cataract surgery from July 2017 to December 2017. In this prospective study, patients aged 36-85 years of both genders were included and statistically analysed. A Bausch and Lomb Manual keratometer was used for measurement of keratometry. Only eyes without a previous history of ocular surgery or any eye abnormality were included.