Astigmatism Solutions From Our Greer Optometrist
Vision problems can as confusing and frustrating are they are inconvenient, and the refractive error known as astigmatism is no exception. This condition, which is caused by abnormal contours in the corneas or lenses of the eye, can be troublesome enough on its own, but it may also compound another issue such as nearsightedness or farsightedness. Fortunately, modern diagnostic and vision correction techniques can help ensure that you're seeing clearly. Our Greer optometrist here at Blue Ridge Vision, Dr. Johnson, can determine exactly how astigmatism affects your visual acuity and then prescribe the ideal solutions to overcome that challenge.
The Irregular World of Astigmatism
Your ability to see clearly hinges on your eyes' ability to refract incoming light so that it falls on the retina perfectly, allowing the brain to convert the light into sharp, focused images. When some abnormality in the eyes' anatomy interferes with this balance, the resulting vision problems are known as refractive errors. Common refractive errors such as nearsightedness and farsightedness are caused by an irregular shape to the eyeball itself, while and age-related refractive error called presbyopia occurs when the lens of the eye develops focus problems. But the cornea (and sometimes the lens) of the eye may also be irregularly shaped, and this abnormality is what causes astigmatism. The abnormalities create zones of blurred vision that may make another existing refractive error even harder to correct for. Extreme astigmatism may be related to a condition called keratoconus, in which the cornea actually bulges outward.
How Our Eye Doctor Addresses Astigmatism
Our eye doctor may suspect astigmatism while checking your visual acuity during a comprehensive eye exam. Measurements of the cornea, using techniques such as keratometry and corneal mapping, can confirm the diagnosis of astigmatism and give us a detailed picture of any corneal irregularities, down to the tiniest pits or deformations. The abnormalities are measured in relation to imaginary lines called meridians.
Once we determine your "sphere" and "cylinder" readings, we can work them into your overall corrective lens prescription. Eyeglasses can correct mild to moderate astigmatism with ease. If you prefer contact lenses, ordinary soft contacts may not be sufficient for more than the mildest cases, since they tend to rotate on the corneal surface when you blink. We can prescribe specialized contacts that don't rotate on the eye (toric contacts), allowing for precise astigmatism correction. Scleral contacts, which extend completely over the cornea, can even correct astigmatism in keratoconus patients.
Schedule an Eye Exam at Blue Ridge Vision
Whether you're experiencing blurriness that might be related astigmatism or you just want to make sure you've got the right eyeglasses or contact lenses for optimal eyesight, Blue Ridge Vision is the place to be. Call 864-877-3031 today to schedule an eye exam and get whatever care you need to overcome astigmatism and other refractive errors.