Can contact lenses correct astigmatism?
Jun 29, 2022
Source: Cainiu Health
Dr. Chen You
Introduction
Contact lenses are also available for astigmatism, but the specific refractive power of the eye, the axis of astigmatism, and the precise degree of astigmatism must be determined. Only with this information can an accurate lens fit be achieved. A trial fitting must be performed at a professional optometry and fitting center in a reputable hospital. It is recommended not to attempt trial fittings online or at private optical shops. Improper fitting may result in inadequate visual correction and adversely affect the patient’s vision.
Generally, when myopia or hyperopia occurs, vision can be corrected with eyeglasses, enabling clearer vision of distant or near objects. Astigmatism is a type of refractive error in the eye, commonly associated with irregular curvature of the cornea. When astigmatism is present, symptoms such as reduced visual acuity and eye strain often occur. So, can contact lenses be prescribed for astigmatism?
Can contact lenses be prescribed for astigmatism?
Yes, contact lenses can be specially designed to correct astigmatism—but precise measurements are essential: the exact spherical power, cylindrical power, and axis orientation of the astigmatism must all be determined. Only with these accurate parameters can an appropriate lens be selected. Patients should visit a certified optometry center at a reputable hospital for a professional fitting. We strongly advise against attempting fittings online or at private optical shops. Improperly fitted contact lenses will fail to provide effective correction and may even impair vision. Therefore, it is highly recommended to wear precisely prescribed contact lenses.
Astigmatism is one of the three primary types of refractive errors. It is a significant condition that substantially affects visual function. The human eye’s entire optical system is not perfectly spherical but rather irregularly contoured. Moreover, internal ocular structures—including the lens, aqueous humor, and vitreous body—further complicate light refraction. As a result, light rays passing through different meridians cannot converge precisely onto the retina—the eye’s “film,” analogous to photographic film in a camera.
In daily life, patients should maintain a positive mindset, actively cooperate with their physicians during treatment, take prescribed medications on time and in the correct dosage, and pay close attention to routine eye care—so as to facilitate prompt improvement of their condition. We hope this information has been helpful to you.
