Pachometry: a comparison between touch and overlap measurement method.
Twelve human eyes had central corneal thickness measurements made by two investigators with the Haag-Streit 900 slitlamp and standard pachometer. Two endpoint methods were used for the final corneal thickness measurement setting in the microscope viewing eyepiece. The two methods used were (1) a touching of the epithelium/endothelium corneal split images and (2) an overlapping of the split images. Although final thickness measurements of the two investigators were similar, the results reveal a statistically significant difference for the two measurement methods.
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