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Start Over Subjects Hyperopia ✖Remove constraint Subjects: Hyperopia Titles Spectacles, why and when to use them, or, Near and far-sightedness, the use and abuse of glasses ✖Remove constraint Titles: Spectacles, why and when to use them, or, Near and far-sightedness, the use and abuse of glasses

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  • Spectacles, why and when to use them, or, Near and far-sightedness, the use and abuse of glasses1