Astigmatism has both a magnitude and a direction, or axis, unlike spherical refractive error, which lacks orientation. Because of the deleterious effect of astigmatism on vision, modern ...

In a cohort of 21,655 children ages 6 to 8 years, the prevalence rate of refractive astigmatism of at least 1.0 diopter (D) increased from 21.4% in 2015 to 34.7% in 2022-2023, and corneal ...

Astigmatism occurs when the eye is shaped more like an oval than a sphere, causing blurry vision. Astigmatism affects about one in three Americans and it occurs more frequently as you age.

A machine learning model using treated astigmatism and other nuanced inputs can significantly improve the accuracy and ...

Residual astigmatism was lower with toric IOLs in patients with against-the-rule astigmatism or astigmatism above 1.5 D. Perspective from Jade Coats, OD Patients with astigmatism above 1.5 D or ...