Orthokeratology can also be effective with mild degrees of certain types of astigmatism (where the front of the eye is more football shaped). It has been practiced in the United States for many years, yet has only recently become more reliable with new technology that allows optometrists to accurately scan the cornea to result in lenses that will achieve a controlled and predictable level of reduction in the eye’s optical imperfection. Also, new developments in lens materials have allowed for safe overnight wear.

Optometry CE in Orthokeratology often reviews recent research and technologies that continue to improve this treatment's standing as a viable option to correct vision.