Anterior Segment and Corneal Parameters in Keratoconus and High Myopic Astigmatism Using Schiempflug Imaging

"Pentacam tomography is not radiation-based. It uses Scheimpflug imaging, which involves a rotating camera that captures multiple images of the anterior segment of the eye. The system employs light-based technology to measure the front and back surfaces of the cornea, along with the anterior chamber and lens, creating a 3D model of the anterior eye structures.~it uses light instead of ionizing radiation (like X-rays), it is considered safe and non-invasive for routine use in ophthalmology.~* It was used to assess 23 parameters from topographic maps and 15 parameters from Belin-Ambrosio enhanced ectasia (BAD) display maps.~* Parameters included keratometry readings, anterior and posterior sagittal curvature, corneal thickness, anterior chamber volume, and several indices from the BAD display map.~* These parameters were analyzed to discriminate between keratoconus and high myopic astigmatism using Receiver Operating Characteristic (ROC) curves for diagnostic accuracy."