Astigmatisms are sometimes also described as regular or irregular. A regular astigmatism occurs when the eye isn’t completely curved. So instead of being round like a basketball, it might take ...

Irregular corneal or lens curvature of the eye causes regular astigmatism. In this condition, the principal meridians are always 90˚ apart from each other and, in this case, there will be a ...

but it is advisable to have an eye exam to check. If astigmatism is regular, the two curves are at a 90-degree angle to each other, and the curvature of each is uniform. In irregular astigmatism ...

Let’s find out. You might’ve guessed already from the title (or hearing the term bandied about in an optometrist’s office), but astigmatism is an eye problem that leads those with it to have ...

With regular eye checkups, your doctor can also ... and you may need to try several pairs to find the right fit. How do toric and astigmatism lenses work differently? Soft toric lenses conform ...

Astigmatism is a term that refers to an imperfection in the shape of the cornea. Rather than being a clear, round dome to cover the iris and the pupil of the eye in an even curved shape ...

Medically reviewed by Andrew Greenberg, MD Astigmatism is a common eye condition where the cornea (outermost eye layer) is irregular. The cornea is usually round like a sphere, but people with ...

Both astigmatism ... during a comprehensive eye exam. Because refractive errors may not have any obvious signs during the initial stages, it is important to attend regular eye appointments so ...