Isometropic amblyopia occurs when both eyes have the same refractive error.

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Multiple Choice

Isometropic amblyopia occurs when both eyes have the same refractive error.

Explanation:
Isometropic amblyopia involves reduced vision from refractive error that is similar (symmetric) in both eyes during development. Saying the condition occurs only when the two eyes have exactly the same refractive error is too strict—isometropia means symmetry, not necessarily identical prescriptions. Small differences between the eyes are common, and bilateral amblyopia can still develop when both eyes are sufficiently blurred. The more classic contrast is that anisometropic amblyopia arises from a clear mismatch between the eyes, driving suppression of the blurrier eye, whereas isometropic amblyopia is bilateral due to similar blur in both eyes.

Isometropic amblyopia involves reduced vision from refractive error that is similar (symmetric) in both eyes during development. Saying the condition occurs only when the two eyes have exactly the same refractive error is too strict—isometropia means symmetry, not necessarily identical prescriptions. Small differences between the eyes are common, and bilateral amblyopia can still develop when both eyes are sufficiently blurred. The more classic contrast is that anisometropic amblyopia arises from a clear mismatch between the eyes, driving suppression of the blurrier eye, whereas isometropic amblyopia is bilateral due to similar blur in both eyes.

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