Corneal Tissue Morphometry in Adults without Corneal Alterations

Abstract

Objective: To describe the morphometric characteristics of corneal tissue in adults without corneal alterations.

Methods: A descriptive, cross-sectional study was carried out with 120 patients, apparently healthy, for a total of 240 eyes, in the Cornea service of the Cuban Institute of Ophthalmology Ramón Pando Ferrer in the period between 2019 and 2022. Demographic variables, refractive status, parameters of anterior and posterior curvatures and elevations, as well as pachymetry were studied.

Results: Predominance of female sex (66.7 %), age between 19 and 59 years (61.7 %), white skin color (82.5 %), myopia (53.8 %). The mean anterior keratometry of the flattest, most curved axis and at the thinnest point was 43.27 ± 0.13 D; 44.19 ± 0.12 D and 44.97 ± 1.51 D, respectively. The mean anterior elevation at the apex and thinnest point was 2.23 ± 0.13 µm and 3.39 ± 0.17 µm. The mean posterior keratometry of the flatter axis was -6.56 ± 2.16 D and in the more curved axis -6.44 ± 1.04 D, the mean elevation at the apex and thinnest point was 6.78 ± 0.16 µm and 6.48 ± 0.5µm, respectively. The mean pachymetry central, apex and at the thinnest point were 527.63 ± 0.65 µm, 528.65 ± 0.75 µm and 519.81 ± 0.55 µm, respectively.

Conclusions: The healthy subjects studied present corneal morphometric values similar to other population-based studies.