in which dimness of vn solely due to refractive errors , pin hole will not improve vn to 6/6 ?

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In Very high refractive errors , e.g more than nearly 7 diopters of Hypermetropia or myopia or aphakia , pin hole will improve vn up to some extent , but not up to 6/6 even if there is no amblyopia .

Myopia , Hypermetropia, Aphakia, Anisometropia, Amblyopia, Astigmatism

Dear Sir, pin hole will improve vn in Pts of myopia & hypermetropia.
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Astigmatism

Anything else ?
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Anisometropic amblyopia

Anything else ?
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Amblyopia, high myopia(pathological)

Macular degeneration

Anisometropic Amblyopia

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