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Diffractive Presbyopia

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October 08, 2019
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BLOG: The future of objective functional near vision assessment: reading speed

Visual acuity is still measured using tools developed more than 150 years ago: the Snellen eye chart, developed in 1862, and the Jaeger near vision chart, first printed in 1867. We have long known these tools are imprecise. Patients with 20/20 acuity can nevertheless have a range of visual quality and visual function.