With astigmatism, the lens of the eye or the cornea, which is the front surface of the eye, has an irregular curve. ... It’s not known what causes astigmatism, but genetics is a big factor.

Causes of astigmatism. The exact cause of astigmatism is unknown. Some people can have congenital astigmatism, caused by a genetic defect or abnormal development in the womb.

Astigmatism is a common eye condition in which an incorrectly curved cornea or lens causes blurred vision. Glasses or lenses can usually correct it, ... but there may be a genetic component.

One 2018 review estimated that the prevalence of astigmatism in World Health Organization regions is 40.4 percent in adults and 14.9 percent in children, although this varied between regions.

After adjusting for sociodemographic factors, parental astigmatism, and child myopia, the pandemic was associated with a 20% increase in the risk of refractive astigmatism (OR 1.20, 95% CI 1.09-1. ...

The COVID-19 pandemic has led to increased astigmatism in children, ... pointing to a mix of genetic and environmental influences. Importantly, ...

Astigmatism is a common eye condition that occurs when the cornea is misshapen. LASIK is a procedure that can correct the cornea's shape with lasers.

Astigmatism often makes your eyesight fuzzy both at a distance and up close. You can look at letters on a chart to see how sharp your vision is. Online tests often use the “Tumbling E” method.

Your DNA impacts your risk for certain diseases—but you may be able to change more than you think. Here’s how to outsmart your genetic destiny for better health.

After adjusting for sociodemographic factors, parental astigmatism, and child myopia, the pandemic was associated with a 20% increase in the risk of refractive astigmatism (OR 1.20, 95% CI 1.09-1. ...