Eine Analyse des vorderen Augenabschnitts mit dem Oculus Pentacam Corneo- Skleral-Profil-Report

Purpose. This study aims to describe the profile progression from cornea over limbus to sclera using the module CSP-Re- port (Corneo-Skleral-Profil-Report) of the Oculus Pentacam. Material and Methods. Seventy-four left eyes of healthy sub- jects were evaluated. Data was collected as part of previous research (bachelor-thesis) using the CSP-Report module of the Pentacam Basic. Sagittal height, limbal angle and scleral angle were analyzed over three diameters in eight semi- meridians. Results. At diameter 10.00 mm the shape of the anterior segment of the eye was nearly rotationally symmetrical, the average sagittal height of the eight semi-meridians was between 1734 µm and 1806 µm. At diameter 12.80 mm the shape was more asymmetrical, average sagittal height ranged from 2797 µm to 3000 µm. At diameter 15.00 mm the asym- metry was most pronounced, the average sagittal height was between 3595 µm and 4033 µm. The average limbal angles at 12.80 mm were in the range of 35.68° and 42.02°. For the scleral angle at 15.00 mm mean values between 34.71° and 43.11° were determined for the eight semi-meridians. The nasal segments always showed smaller sagittal heights, accompanied by smaller limbal and scleral angles compared to the temporal semi-meridians. The same pattern was obser- ved for the superior semi-meridians in relation to the inferior segments. For the nasal semi-meridians, concave transitions of the corneo-scleral profile were observed, whereas tempo- rally a convex course of the CSP was observed. Conclusion. The CSP-Report provides a method to describe the shape of the anterior segment of the eye. These additional data are useful for fitting scleral lenses. Keywords Scheimpflug technology, Pentacam, limbal sclera contour, corneo-scleral profile, scleral lens, sagittal height