Rotation asymmetry of the human sclera

Acta Ophthalmologica
Alejandra ConsejoJos J Rozema

Abstract

To characterize the mean topographical shape of the human sclera of a normal eye. Forty-five participants aged from 19 to 45 years and with no previous ocular surgeries were included in this study. Four three-dimensional (3D) corneo-scleral maps from both eyes were acquired using a corneo-scleral topographer (Eye Surface Profiler). For each 3D map, the sclera (maximum diameter of 16 mm) and cornea were automatically separated at the level of the limbus. The remaining 3D scleral ring was further fit to a quadratic function. The elevation difference between the original and fit data was calculated. For statistical analysis, sclera was divided into eight sectors: nasal, temporal, superior, inferior, supero-nasal, supero-temporal, inferior-nasal and inferior-temporal. In addition, sclera was separated as inner sclera (inner ring of 6-7-mm radius) and outer sclera (external ring of 7-8-mm radius). Horizontally, the nasal area of the sclera showed less elevation [mean (SD) -30 (52) μm (OD)] than the temporal area [mean (SD) 4 (47) μm (OD)], p < 0.001. Vertically, the inferior area of the sclera [mean (SD) 32 (72) μm (OD)] was slightly less elevated than the superior area (mean (SD) 36 (84) μm, but this difference was not statisticall...Continue Reading

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Jun 13, 2017·Journal of Cataract and Refractive Surgery·Alejandra ConsejoD Robert Iskander
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Citations

Nov 20, 2018·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Alejandra ConsejoJos J Rozema
Sep 18, 2020·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Stefan BandlitzJames S Wolffsohn
Oct 1, 2020·Acta Ophthalmologica·Eva VanhonsebrouckElke O Kreps
Nov 15, 2019·Eye & Contact Lens·Stephen J VincentMichael J Collins
Oct 30, 2020·Journal of Clinical Medicine·Alejandra ConsejoAhmed Abass
Jun 13, 2020·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Stefaan Van NuffelElke O Kreps
Jan 12, 2021·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Eef van der WorpPatrick Caroline
Sep 18, 2020·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Siska E DhaeseAlejandra Consejo
Mar 30, 2021·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Melissa BarnettPhilip B Morgan
Mar 27, 2021·Eye & Contact Lens·Laurent BatailleDavid P Piñero

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