Prueba de refracción ocular; Prueba de refracción visual
Un valor normal es la visión 20/20 (visión perfecta: capaz de leer letras de un tamaño de 3/8 de pulgada a una distancia de 20 pies (6 m). También se usa un tamaño de tipo pequeño para determinar la visión cercana normal.
Algunas afecciones adicionales por las que se puede realizar este examen son:
Yanoff M, Duker JS, Augsburger JJ, et al. Ophthalmology. 2nd ed. St. Louis, Mo: Mosby; 2004:71-77.
Behrman RE. Nelson Textbook of Pediatrics. 17th ed. Philadelphia, Pa: WB Saunders; 2004; 2084-2085.
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