Relationship between Axial Length and Corneo-Scleral Topography: A Preliminary Study

Relationship between Axial Length and Corneo-Scleral Topography: A Preliminary Study

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The main objective of the current study was to investigate further the relationship of the overall length of the eye with a great variety of anterior segment parameters, including scleral geometry.A total of 64 eyes of 32 participants with ages from 12 to 52 years were included in this prospective non-randomized single-center study.All participants underwent a complete eye examination, including an analysis of corneo-scleral shape with a Fourier-domain profilometer.A strong negative correlation was found between axial length and temporal-nasal ocular Dice sagittal height difference for different chord lengths.For the right eye, a consistent and stable linear model was obtained to predict the axial length from the spherical equivalent, the corneal diameter, the high-order aberrations root mean square, and the minimum sagittal height baby toys for 13- and 14-mm chord.

For the left eye, a model was obtained to predict the axial length from the spherical equivalent and the mean corneal curvature, including other parameters such as corneal diameter or high-order aberrations, depending on the chord length, considered for estimating the sagittal height values.More studies with larger samples are needed to confirm these preliminary outcomes.