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Anisometropia


Anisometropia is a condition in which the refractive power of the two eyes is significantly different, causing one eye to focus differently from the other. This difference can lead to problems with binocular vision and may result in blurred vision, headaches, or difficulty with depth perception. Anisometropia can affect one’s ability to see clearly at both near and far distances if left uncorrected.

  • Causes: The condition is typically caused by differences in the shape or curvature of the cornea or lens between the two eyes. One eye may be more nearsighted (myopic) or farsighted (hyperopic) than the other, or one eye may have astigmatism while the other does not. Anisometropia can be present from birth or develop over time, often in childhood or adolescence.
  • Symptoms: Common symptoms of anisometropia include blurred vision, eyestrain, headaches, and difficulty with depth perception or focusing on objects. In more severe cases, the brain may suppress the vision in one eye to avoid double vision, potentially leading to amblyopia (lazy eye). Children with anisometropia are particularly at risk for developing amblyopia if the condition is not detected and treated early.
  • Treatment: Treatment options for anisometropia include corrective lenses, such as glasses or contact lenses, which help balance the refractive power between the two eyes. In some cases, specialized lenses, such as those with different prescriptions for each eye, may be required. Refractive surgery, such as LASIK or PRK, may also be an option for correcting the refractive error and restoring clear vision in both eyes.

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