Residual astigmatism, even at low levels, can degrade visual acuity after intraocular surgery, according to a study published in the Journal of Cataract & Refractive Surgery.
“There have been no studies that were sufficiently powered to investigate the independent effect of low amounts of astigmatism on the outcomes of pseudophakic patients,” Steven C. Schallhorn, MD, told Healio|OSN. “Hence, the purpose of the study was to evaluate the effect of residual astigmatism on postop acuity and satisfaction in a large cohort of patients undergoing refractive lens exchange or