Astigmatism (uh-STIG-muh-tiz-um) is a type of refractive error where one or more of the eye’s surfaces are not smooth and/or round. It is broadly classified into two types: regular and irregular.

If you’ve ever gone to the optometrist and been told that your eyes aren’t perfectly round, you’re not alone. According to a report published in Science Direct, approximately 40% of people worldwide ...

Dr. Everett answers the question: 'What's Astigmatism And How Common Is It?' Aug. 24, 2009— -- Question: What is astigmatism and how common is it? Answer ...

Lake Oswego, OR - January 08, 2026 - PRESSADVANTAGE - At Tersigni Vision, a growing number of patients are asking ...

Please provide your email address to receive an email when new articles are posted on . Many patients desire a refractive correction at the same time as cataract ...

The development of a new tool for testing the eyesight of children under three could mean more children receive treatment for vision difficulties earlier, leading to positive effects on learning and ...

As screen time increases and vision problems become more common at every age, many still misunderstand conditions like myopia ...

The prevalence and severity of refractive and corneal astigmatisms increased among children after the COVID-19 pandemic. Previous research has linked the pandemic to increases in myopia progression ...