![Comparison of corneal power, astigmatism, and wavefront aberration measurements obtained by a point-source color light-emitting diode–based topographer, a Placido-disk topographer, and a combined Placido and dual Scheimpflug device]()
Comparison of corneal power, astigmatism, and wavefront aberration measurements obtained by a point-source color light-emitting diode–based topographer, a Placido-disk topographer, and a combined Placido and dual Scheimpflug deviceVentura, Bruna V.; Wang, Li; Ali, Shazia F.; Koch, Douglas D.; Weikert, Mitchell P. · Journal of Cataract & Refractive Surgery · 2015