Astigmatism Treatment Options
Recognizing the Signs of Astigmatism
Astigmatism happens when the cornea or lens has an irregular curve, causing light to focus unevenly on the retina. The result is blurred or distorted vision that can show up at any distance, not just up close or far away. Understanding the symptoms helps you know when it is time to schedule an exam.
Unlike nearsightedness, which mainly blurs far-away objects, astigmatism can make both near and distant objects look fuzzy or slightly doubled. Straight lines may appear wavy, and text can seem to bleed together when you are reading.
Some people notice a shadowy halo around letters or objects, especially under dim lighting. These symptoms can vary throughout the day and often feel worse when you are tired.
When your eyes try to compensate for an uneven corneal shape, the muscles that control focus work overtime. That extra effort commonly leads to headaches around the forehead and temples, particularly after long periods of reading or screen use.
Children with astigmatism may squint, tilt their head, or lose their place while reading. Adults often mistake these symptoms for general fatigue rather than a vision problem, which is one reason a routine eye exam is so valuable.
Not every case of astigmatism requires correction. If your astigmatism is mild and you have no symptoms, such as no headaches, squinting, or noticeable blur, your eye doctor may simply recommend monitoring it with regular exams rather than prescribing lenses.
A prescription that was unnecessary last year may become helpful if your corneal curvature shifts over time. Adults are typically rechecked every one to two years, while children and teens may need annual visits since their vision can change more quickly during growth.
Correcting Astigmatism with Glasses
Glasses are usually the first treatment recommended for astigmatism, and for most people they provide immediate, reliable improvement. The right lens design depends on your full prescription, your daily activities, and whether you have other refractive errors alongside astigmatism.
Glasses for astigmatism use cylindrical lenses, which bend light along one specific axis to compensate for the uneven corneal curve. Your prescription includes a cylinder value and an axis number, measured in degrees from 1 to 180, that tell the lab exactly where and how much correction to build into each lens.
Most people adapt to new glasses within a few days. If your cylinder value is high, the adjustment may take one to two weeks as your brain recalibrates to the corrected image.
Single-vision lenses work well when astigmatism is your only refractive error. If you also have nearsightedness, farsightedness, or presbyopia (age-related difficulty reading up close), your eye doctor may prescribe bifocal or progressive lenses that address all your needs in one pair of glasses.
High-index lens materials keep strong prescriptions thin and lightweight. Anti-reflective coatings reduce the glare and halos that astigmatism can make more noticeable, especially during nighttime driving.
Astigmatism can change over time, particularly in children and teenagers whose corneas are still developing. An outdated prescription can cause the same headaches and eye strain you had before getting glasses in the first place.
If your vision starts blurring again while wearing your current glasses, it is worth scheduling an exam sooner rather than waiting for your next routine visit.
Contact Lens Options for Astigmatism
Many people with astigmatism wear contact lenses successfully, and there are several types designed specifically for this condition. The best option for you depends on the severity and type of your astigmatism as well as your lifestyle preferences.
Soft toric lenses are the standard contact lens choice for astigmatism. They have different powers in different zones and include a stabilization feature that keeps the lens correctly oriented on your eye so that the axis stays in the right position.
Toric lenses are available as daily disposables, bi-weekly, or monthly replacement options. Your eye doctor fits them based on your cylinder power, axis, and corneal measurements. Most people with mild to moderate astigmatism achieve clear, comfortable vision with soft toric lenses.
For more severe or irregular astigmatism, rigid gas-permeable (RGP) lenses may produce sharper results than soft lenses. RGP lenses create a smooth optical surface over the irregular cornea, which can sharpen vision in cases where soft toric lenses fall short.
Scleral lenses are a larger type of rigid lens that vault over the entire cornea and rest gently on the white of the eye (the sclera). They are especially helpful for people with irregular astigmatism caused by conditions such as keratoconus. Both lens types have a slightly longer break-in period than soft contacts, but most wearers adapt within one to two weeks.
Toric and RGP lenses require the same careful hygiene as any contact lens. Always wash your hands before handling your lenses, use fresh solution each night, and replace lenses on the schedule your eye doctor recommends.
Sleeping in contacts that are not approved for overnight wear increases your risk of eye infection regardless of lens type. If you experience redness, pain, or a sudden change in vision, remove your lenses and contact our office promptly, as these symptoms can indicate a corneal problem that needs timely attention.
Surgical Treatment for Astigmatism
Laser vision correction can reduce or eliminate astigmatism for many patients, offering lasting improvement without the daily need for glasses or contacts. Our refractive surgery specialists, including Elliot Perlman, M.D., Christopher Newton, M.D., and Jane Cook, M.D., evaluate each patient carefully to determine the safest and most effective approach.
LASIK uses a precise laser to reshape the cornea and correct the irregular curve that causes astigmatism, often alongside nearsightedness or farsightedness. Many patients notice significantly clearer vision within 24 hours of the procedure.
Regular, or symmetric, astigmatism responds well to LASIK. Before recommending surgery, your surgeon will review your corneal thickness, prescription stability, and the pattern of your astigmatism to confirm that you are a suitable candidate. You will use prescribed eye drops for several weeks during healing and attend follow-up visits to monitor your recovery.
PRK (photorefractive keratectomy) is another laser procedure that corrects astigmatism by reshaping the corneal tissue, but it does so without creating the corneal flap used in LASIK. This makes it a preferred option for patients with thinner corneas or for those whose lifestyle carries a higher risk of eye impact, such as contact sport athletes.
Recovery from PRK takes a bit longer than LASIK because the outer corneal layer needs several days to regenerate, and vision may fluctuate for a few weeks before fully stabilizing. Long-term outcomes are comparable to LASIK for most patients.
Candidates for laser surgery generally need a stable prescription for at least one to two years before the procedure is considered. Certain conditions, including active eye disease, severe dry eye, autoimmune disorders, and pregnancy, may temporarily or permanently affect eligibility.
Your surgeon uses corneal topography, a detailed map of the corneal surface, to determine whether laser reshaping can safely correct your astigmatism. If you do not qualify for surgery at this time, glasses and advanced contact lenses remain highly effective alternatives, and your eligibility can be reassessed if your circumstances change.
Frequently Asked Questions
These answers address common questions our patients ask when deciding between correction options for astigmatism.
Astigmatism tends to change most during childhood and adolescence as the cornea develops, then stabilizes for most adults. That said, small shifts can still occur in adulthood, which is why regular exams matter even if your vision feels unchanged. If your prescription has shifted enough to affect comfort or clarity, updating your correction is straightforward.
LASIK permanently changes the shape of your cornea, but a small amount of astigmatism can return if the cornea continues to change during healing or with age. If a meaningful shift occurs after your initial surgery, your surgeon may discuss an enhancement procedure to refine the result. This is less common than the original correction and is evaluated on a case-by-case basis.
Toric lenses do require more precise measurements than standard contacts because they must align accurately with your specific astigmatism axis. Your eye doctor may schedule one or two fitting appointments to find the right brand and parameters for your eyes. Once fitted correctly, most people find toric lenses just as comfortable as standard soft contacts for everyday wear.
Children who are mature enough to handle lenses responsibly and follow hygiene instructions can wear soft toric contacts, often starting around ages 10 to 12. Readiness is individual, and your child's eye doctor will assess their level of responsibility and supervise the initial fitting visits. Children with irregular astigmatism may be fitted with specialty lenses when appropriate.
Uncorrected astigmatism often makes nighttime driving more difficult because it amplifies glare and halos around headlights and streetlights. Wearing your corrective lenses while driving typically resolves most of this distortion. If glare remains bothersome even with your lenses on, anti-reflective coatings added to your glasses can make a noticeable difference.
Regular astigmatism has a consistent, predictable curve across the cornea that glasses or standard toric contacts can correct effectively. Irregular astigmatism involves an uneven or scarred corneal surface, often due to conditions like keratoconus or prior injury, and standard lenses may not fully compensate for it. In those cases, scleral lenses or specialized surgical approaches tend to produce better vision outcomes.
Schedule Your Astigmatism Evaluation at Rhode Island Eye Institute
Our team of specialists brings together the expertise, technology, and personalized care you need to find the right astigmatism solution for your vision and lifestyle. Whether you are exploring glasses, contacts, or laser surgery, we will walk you through every option and help you make a confident, informed decision. We invite you to schedule a comprehensive eye exam at any of our Rhode Island Eye Institute locations and take the first step toward clearer, more comfortable vision.