Abstract
Purpose: Sagittal height is important during scleral lens fitting. This study compares: Pentacam's internal measurement program, optical coherence tomography (Visante OCT) and sagittal height calculation using K's and e-values at 10 and 15 mm chords. The sagittal height difference between these chords was calculated to determine a constant that could be added for measures taken only at 10 mm.
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