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Postoperative achieved vs attempted spherical equivalent refraction at 12 months after transepithelial photorefractive keratectomy (tPRK), laser-assisted in situ keratomileusis (LASIK), and photorefractive keratectomy (PRK).
Note: The dots within the green lines indicate patients that achieved spherical equivalent (SE) within ±0.5D; and the dots within the purple lines indicates the patients that achieved SE within ±1.0D.
