This is a repo that contains data from my glasses prescriptions along 15 years, more precisely, from 15 to 29 years old.
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OD: right eye
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OS: left eye
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Sphere: diopters that if preceded by a minus sign (-) refers to myopia and preceded by a positive sign (+) to hyperopia.
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Cylinder: astigmatism diopters, negative or positive (- or +).
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Axis: position of astigmatism, is expressed in values between 0º and 180º