Fig. 3
The difference in asymmetry between the anterior and posterior aspect of the cornea in the left eye (LE) illustrated by measurements obtained from the Pentacam, Orbscan, and SIRIUS instruments. The left eye was shown in all these tests to be “potentially” at risk. A The Pentacam examination was automatically evaluated with the Belin/Ambrósio method. The arrow points to a highlighted “warning” signal (yellow) in the rear differential map with a value of +12. B The Orbscan revealed the presence of an alteration of the corneal posterior elevation of 0.058 mm in the left eye. C The results of the SIRIUS show in the left eye the presence of an asymmetry of the curvature expressed in D (diopters) between the front and back face and which is represented with a yellow triangle, Slb = 0.24 D, indicated with an arrow.