Overview
Toric lenses are contact lenses prescribed to correct astigmatism. Astigmatism, a common vision disorder, results when light hits the back of the eye in two focal points instead of one spot. Toric lenses redirect the light coming into the eye and relieve blurred vision associated with astigmatism.
Prevalence
An estimated 25 percent of all contact lens users wear toric lenses, according to an annual report published in “Contact Lens Spectrum” in January 2010.
Materials
Although toric lenses are most often prescribed in soft materials, such as silicon hydrogels, they also come in rigid forms. The lens prescribed is ultimately the decision of the eye care provider.
Types
A wide variety of toric lenses exist, including colored lenses, disposable contacts and multifocal lenses.
Considerations
Toric contact lenses have a higher cost than lenses which do not correct for astigmatism because they are more complex to manufacture, fit and dispense than standard spherical contact lenses.
Misconceptions
Individuals who believe they can’t wear contacts due to astigmatism may find that their doctor can now fit them in contacts, as new lens technologies constantly emerge.
About this Author
Jessica Pestka has been a non-fiction writer for almost a decade. She uses her education and work in optics and pharmaceuticals often in her writing. Pestka obtained her Bachelor of Science degrees in Biology and English from the University of Wisconsin, is certified as an optician by the American Board of Opticianry and attended acupuncture school at the Midwest College of Oriental Medicine.
