Anterior surface-based keratometry compared with Scheimpflug tomography-based total corneal astigmatism.

@article{Tonn2014AnteriorSK,
  title={Anterior surface-based keratometry compared with Scheimpflug tomography-based total corneal astigmatism.},
  author={Bastian Tonn and Oliver Klaus Klaproth and Thomas Kohnen},
  journal={Investigative ophthalmology & visual science},
  year={2014},
  volume={56 1},
  pages={291-8}
}
PURPOSE Description of total corneal refractive power (TCRP) astigmatism by ray tracing using a Scheimpflug tomographer. METHODS Analysis of Scheimpflug tomography measurements to determine 3-mm-zone TCRP astigmatism (CATCRP) by ray tracing calculations, astigmatism in 15°-zone from simulated keratometry (CASim-K), anterior-surface astigmatism (CAant), and posterior-surface astigmatism (CApost). An analysis of changes with age was performed. The error produced by estimating CATCRP using CASim… CONTINUE READING