Also, those with worsening astigmatism only in one eye may develop refractive amblyopia, which has also been dubbed "lazy eye ...

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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.

In general, patients will find 1 D or more of astigmatism to be significant, although some may find lesser amounts to be bothersome. One study suggests that as many as 20% of eyes with cataract ...

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 ...

The prevalence and severity of refractive astigmatism and corneal astigmatism ... Morse et al, Importance of Population-Based Studies in Childhood Eye Disease—Seeing the Bigger Picture, JAMA ...