OCT 05, 2016
Ectasia Detection: Placido and Other Reflection Topography Is the Most Accurate
AAO 2015
Cornea/External Disease, Refractive Mgmt/Intervention
This video asserts that placido-based ectasia is an essential adjunct to accurate ectasia detection and can help with recognition of early ectasia that might be less evident using elevation based technology. It is easily the best known and most widely available method for corneal shape assessment and directly measures corneal power, as opposed to other technologies, which employ a derivative of elevation data.