Our solution corrects for spherical errors, not cylindrical errors (i.e., astigmatism), as correcting for astigmatism would significantly complicate the supply chain and potentially prevent delivering the solution to some areas. However, there are two important factors to consider:

Most incidences of astigmatism are relatively minor (it’s a natural curve, which means the vast majority of customers will have “zero” or “very minor” cylindrical errors). On average, only 7% of people with refractive errors have astigmatism, and most of that will be “very minor.”

A prescription that corrects for spherical error can sometimes be adjusted to compensate for some of the cylindrical error (“spherical equivalent”). Although our assessment doesn’t cover astigmatism, the fact that people select the lens that works best for them also allows them to compensate as needed to find a lens that works best.