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Mixed astigmatism is a specific type of refractive error. It means the eye does not focus light evenly, causing it to be nearsighted in one direction and farsighted in the other. An eye with this condition has two focal points, with one focusing in front of the retina and the other focusing behind it. This causes vision to be blurry at all distances.
read more about mixed astigmatism ...An eye with any type of astigmatism has a shape more like a football than a round basketball. This creates two separate focal points. In mixed astigmatism, the eye's curves are shaped in such a way that one of these focal points lands in front of the retina, creating nearsightedness. The other focal point lands behind the retina, creating farsightedness. With no light ever focusing perfectly on the retina, vision is always out of focus.
The primary symptom of mixed astigmatism is blurry or distorted vision at all distances, both near and far. Because the eye is constantly struggling to find a clear point of focus, it can also lead to significant eye strain, headaches, and fatigue. People with this condition often find themselves squinting in an attempt to make images sharper.
Mixed astigmatism is corrected with prescription lenses that have a special toric curve. Eyeglasses or toric contact lenses are designed with two different powers in the lens. This complex curve corrects for both the nearsighted and farsighted focal points at the same time, bringing them together to create a single, sharp point of focus on the retina. Refractive surgery, like LASIK, can also be an option to permanently reshape the cornea.
Correcting mixed astigmatism with soft contact lenses can be challenging because of the complex shape of the prescription. The lens must remain perfectly stable on the eye to align the two different focal points correctly. If the contact lens rotates even slightly when you blink, your vision will immediately blur. This is why contact lenses for mixed astigmatism often have special weighting or ballast zones to keep them locked in position.
It is less common than simple myopic (nearsighted) or hyperopic (farsighted) astigmatism, but it is not a rare condition. An eye doctor will diagnose it during a routine eye exam.
No, you cannot outgrow it. The shape of your eye that causes astigmatism can change slowly over time, but it will not go away on its own. It requires corrective lenses or surgery for clear vision.
The prescription will have numbers in both the "sphere" and "cylinder" sections. The relationship between these numbers is what tells the doctor it is the mixed type. For example, it might have a plus sphere and a minus cylinder that is larger than the sphere power.
You should see an eye doctor if your vision is consistently blurry, whether you are looking at things up close or far away. Frequent headaches and eye strain are also signs that you may have an uncorrected vision problem like mixed astigmatism. Only an eye doctor can perform the tests needed to find the exact prescription to help you see clearly and comfortably.
Astigmatism Explained Causes, Diagnosis, Treatment. American Academy of Ophthalmology. https://www.aao.org/eye-health/astigmatism. Accessed April 3, 2026.
Astigmatism. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/astigmatism/symptoms-causes/syc-20353835. Accessed April 3, 2026.
Astigmatism Diagnosis and Treatment. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/astigmatism/diagnosis-treatment/drc-20353838. Accessed April 3, 2026.
Astigmatism. StatPearls. National Center for Biotechnology Information. https://www.ncbi.nlm.nih.gov/books/NBK582142/. Accessed April 3, 2026.
LASIK for Hyperopia, Hyperopic Astigmatism, and Mixed Astigmatism. Ophthalmology. https://www.aaojournal.org/article/S0161-6420%2804%2900817-6/fulltext. Accessed April 3, 2026.