Conditions that require:
Medically Necessary Conditions
Testing: Belin / Ambrósio Topography:
The goal of the Belin/Ambrósio Enhanced Ectasia Display is to combine elevation based and pachymetric corneal evaluation in an all-inclusive display. This gives the clinician a global view of the structure of the cornea and allows the physician to quickly and effectively screen patients for ectatic disease. The elevation maps and pachymetric data are placed side by side in a comprehensive display. Evaluating these measurements from different perspectives increases the clinician’s ability to identify abnormalities. The combination of the pachymetric graphs and indices and the enhanced elevation maps provided by the Belin/Ambrósio Enhanced Ectasia Display have increased sensitivity and specificity in the screening of patients for ectasia.
Keratoconus is, by definition, a bilateral (often highly asymmetric) corneal disease characterized by progressive thinning and protrusion which leads to an increase in curvature, irregular astigmatism, and progressive myopia. In about 5% of the cases, there is significant asymmetry when the less-involved eye initially presents with a normal curvature map. Longitudinal studies have found that about 50% of such cases progress to clinical keratoconus.
Reference
Highlights of Ophthalmology VOLUME 35, Number 6
Keratoconus/Ectasia Detection with the Oculus Pentacam: Belin/Ambrósio Enhanced Ectasia Display
Michael W. Belin, MD, FACS Professor & Director, Cornea & Refractive Surgery, Albany
Medical College, Lions Eye Institute: Albany, New York (USA)
Stephen S. Khachikian, Albany Medical College, Lions Eye Institute: Albany, New York (USA)
Renato Ambrósio Jr., MD, PhD, Adjunct Professor of Ophthalmology, Fluminense Federal University, Director of Cornea and Refractive Surgery, Instituto de Olhos Renato Ambrósio:
Rio de Janeiro, Brazil
Marcella Salomão, MD, Refractive Surgery, Fellow, Instituto de Olhos Renato Ambrósio:
Rio de Janeiro, Brazil
