[Comparison of Goldmann applanation and dynamic contour tonometry measurements: effects of corneal morphometry]. / Concordancia entre la tonometría de aplanación de Goldmann y la tonometría de contorno dinámico: efectos de la morfometría corneal.
Arch Soc Esp Oftalmol
; 86(9): 287-91, 2011 Sep.
Article
en Es
| MEDLINE
| ID: mdl-21893262
OBJECTIVES: To compare intraocular pressure (IOP) measurements made by Goldmann applanation tonometry (GAT) and dynamic contour tonometry (DCT). METHODS: IOPs were measured by GAT and DCT in 63 eyes of 63 healthy subjects. A comparison was made by intraclass correlation coefficient. Passing-Bablok plot was constructed to establish the existence of systematic and/or proportional biases. Multivariate regression analysis was used to examine whether the measurements of both instruments were affected by the power of the steepest and flattest corneal axes, their orientation, age or central corneal thickness (CCT). RESULTS: The intra-class correlations (ICCs) were 0.57 (95% confidence interval (95% CI): 0.29-0.74). Mean differences were 1.68 (DCT minus GAT) (95% CI: 0.92-2.44). Passing-Bablok analysis (X=DCT, Y=GAT) revealed a systematic bias (A=-14.35, 95% CI: -24.51-[-9.14]) and a proportional bias (B=1.74, 95% CI: 1.43-2.26). Multivariate regression analysis revealed that the DCT was independent of the corneal characteristics analysed while GAT was biased by CCT (B=0.042, 95% CI: 0.002-0.082). CONCLUSIONS: While GAT was biased by corneal CCT; DCT readings were independent of corneal morphometry.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Tonometría Ocular
/
Hipertensión Ocular
/
Córnea
Tipo de estudio:
Clinical_trials
Límite:
Aged
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
Es
Revista:
Arch Soc Esp Oftalmol
Año:
2011
Tipo del documento:
Article
Pais de publicación:
España