Dual-Scheimpflug-Placido-disc corneal analysis in cats

Objective To evaluate the corneal topography and tomography of cats using a dual Scheimpflug and Placido disc device. Animal studied Sixteen mixed-breed cats (32 eyes). Procedure(s) Cats were sedated using meperidine (4.3 mg/kg/IM) and xylazine (0.5 mg/kg/IM), and evaluated using the software Galilei (TM). Values assessed included anterior and posterior corneal curvature, total corneal power, and corneal thickness. Results Ten males and six females aged between 18 and 48 months were evaluated. The simulated keratometry (SimK) was 38.37 +/- 0.83D, mean posterior keratometry -4.89 +/- 0.34D, and mean total corneal power 38.04 +/- 0.94D. The mean central corneal thickness (CCT) was 617.34 +/- 53.38 mu m with a mean thinnest point of 583.74 +/- 60.60 mu m. Conclusion The Galilei (TM) examination was feasible in cats, enabling a detailed study of the cornea. To the best of our knowledge, this is the first study evaluating the corneal topography and tomography of cats using a device that integrates data from a dual Scheimpflug and Placido disc system.