Prevalence of Corneal Astigmatism before Cataract Surgery in Yazd Province, Iran

To analyze the prevalence and presentation patterns of corneal astigmatism in cataract surgery candidates in Shahid Sadoughi University of Medical Sciences, Yazd, Iran.Patients and

Refractive and keratometric values from 400 eyes of 365 patients were measured before surgery in patients having cataract extraction. Descriptive statistics of refractive and keratometric cylinder data were analyzed and correlated by age ranges.

Our data showed that 22.8% of patients had less than 1D of corneal astigmatism,12.9% had 1-1.5D, 21% had 1.5-2D and 9.3% had more than 2D of corneal astigmatism, so among all of the patients, astigmatism of 0.0 to 1.00D was the most common cylinder value (22.8%).

Our study showed that 43.2% of preoperative cataract surgery eyes in Yazd have a corneal astigmatism of 1.0D or more, indicating that better surgical techniques or using Toric IOLs are needed to achieve better visual rehabilitation.