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A.D. D. Oliveira, A. Hofling–Lima, R. Chalita, M. Campos; Correlation of Wavefront Measurements With Refraction and Corneal Topography in Patients Submitted to Penetrating Keratoplasty . Invest. Ophthalmol. Vis. Sci. 2005;46(13):852.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: To evaluate wavefront measurement in patients after penetrating keratoplasty(PK) and analyze its correlation with refraction and corneal topography. Methods: 36 eyes of patients that underwent PK at least 1 year prior to examination with were enrolled. Ophthalmologic exam, corneal topography and wavefront maps were compared. Wavefront analysis was performed with a Hartmann–Schack Sensor using a 6mm–pupil size, measuring up to 6th order of higher order aberrations(HOA).Results: The wavefront device was able to capture all eyes with good reproducibility. Wavefront refraction showed a statistically significant correlation with Manifest and Cycloplegic refraction in those eyes. Manifest refraction cylindrical component correlated well with wavefront refraction cylindrical component. Even eyes with high amounts of HOA showed a good correlation between the refractions analyzed in this study. HOA values were greater than in normal eyes, particularly trefoil, tetrafoil and secondary astigmatism. Conclusions: Wavefront measurements were possible in highly aberrated post–PK eyes. Wavefront analysis in post–PK eyes is a valuable tool in measuring refractive errors and ocular aberrations.
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