Comparison of Biometric Measurements and Refractive Results between Applanation Ultrasonography and Three Different Interferometries
Journal of the Korean Ophthalmological Society
; : 1720-1727, 2015.
Article
em Ko
| WPRIM
| ID: wpr-213415
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE: To compare ocular biometry and refractive results measured using conventional applanation ultrasonography and 3 different optical interferometries, Lenstar LS900(R), AL-Scan(R) and OA-2000(R). METHODS: The biometries of 31 cataractous eyes were measured using ultrasonography, Lenstar LS900(R), AL-Scan(R) or OA-2000(R). The axial length, anterior chamber depth and keratometry were measured. The SRK/T formula was used to calculate intraocular lens power. Two months after cataract surgery, the refractive outcome was determined and results from the 4 different biometry methods were compared. RESULTS: Axial lengths were 23.39 +/- 0.95 mm, 23.42 +/- 0.98 mm, 23.43 +/- 0.98 mm and 23.44 +/- 0.98 mm measured using ultrasonography, Lenstar LS900(R), AL-Scan(R) and OA-2000(R), respectively with no statistically significant differences observed (p = 0.996). The anterior chamber depth and keratometry were 3.14 +/- 0.41 mm, 3.10 +/- 0.38 mm and 3.13 +/- 0.39 mm (p = 0.936) and 44.41 +/- 1.52 D, 44.54 +/- 1.57 D and 44.44 +/- 1.52 D (p = 0.937) for Lenstar LS900(R), AL-Scan(R) and OA-2000(R) respectively. There were no statistically significant differences between the 3 optical devices. The mean absolute error of the 4 different devices were not statistically significant (p = 0.722). CONCLUSIONS: The ocular biometric measurements and prediction of postoperative refraction using ultrasonography, Lenstar LS900(R), AL-Scan(R) or OA-2000(R) showed no significant differences.
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Índice:
WPRIM
Assunto principal:
Erros de Refração
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Catarata
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Biometria
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Ultrassonografia
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Dispositivos Ópticos
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Interferometria
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Lentes Intraoculares
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Câmara Anterior
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Idioma:
Ko
Revista:
Journal of the Korean Ophthalmological Society
Ano de publicação:
2015
Tipo de documento:
Article