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Arquivos Brasileiros de Oftalmologia
On-line version ISSN 1678-2925
FREITAS, Wilson de; MELO JUNIOR, Luiz Alberto Soares; SCHOR, Paulo and CAMPOS, Mauro. Comparative analyses between clinical refraction and automatic refraction obtained through a wave front sensor. Arq. Bras. Oftalmol. [online]. 2007, vol.70, n.4, pp. 677-682. ISSN 1678-2925. http://dx.doi.org/10.1590/S0004-27492007000400019.
PURPOSE: To evaluate and compare refractive errors obtained through clinical subjective and automatized wavefront refraction analyses in eyes under cycloplegia. METHODS: Prospective study of 147 patients, 279 eyes, undergoing preoperative examination for refractive surgery. Clinical subjective refraction was performed first followed by wavefront refraction. Results on astigmatism obtained from refraction were decomposed in power vectors for statistical analyses. Data were first analyzed in one eye and then in both eyes. RESULTS: The mean difference between clinical subjective refraction and automatized wavefront refraction on cycloplegic eyes was of -0.19 SD combined with -0.06 CD in the 15º axis for data in one eye, and -0.17 SD combined with -0.05 CD in the 3º axis for data in both eyes of the same patient. CONCLUSION: In the present study clinical subjective refraction and automatized wavefront refraction under cycloplegia had similar numerical values.
Keywords : Refractive errors [surgery]; Refraction, ocular; Optometry; Diagnostic techniques, ophthalmological; Comparative study.