الاستجماتيزم المنتظم دون 3.00 د عندما لم تحقق النظارات حدة بصرية 20/25

References

In regular corneal astigmatism, the refractive power varies successively from one meridian to the next, and each meridian has a uniform curvature.

In this document, low to moderate refractive errors are defined as spherical equivalents of less than 6.00 diopters (D) of myopia, less than 3.00 D of hyperopia, and less than 3.00 D of regular astigmatism.

Low to moderate astigmatism can be corrected with soft toric contact lenses or with rigid gas-permeable contact lenses.