2022
DOI: 10.2147/opth.s388614
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Best Fit Sphere Back and Adjusted Maximum Elevation of Corneal Back Surface as Novel Predictors of Keratoconus Progression

Abstract: Purpose We evaluated the Maximum Elevation of Corneal Back Surface adjusted to the same Best Fit Sphere Back (BFSB) between timeline measurements (AdjEleBmax) and the BFSB radius (BFSBR) itself as new tomographic parameters for documentation of ectasia progression and compare them with the most recent and reliable parameters used on keratoconus (KC) progression. Results We evaluated the performance and the ideal cutoff point of Kmax, D-index, posterior radius of curvatu… Show more

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Cited by 2 publications
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References 39 publications
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“…15 Although not validated, some parameters are frequently used as KC progression criteria in the literature, in studies that use the Pentacam ® tomography system (OCULUS Optikgeräte GmbH, Wetzlar, Germany). 13,[16][17][18][19][20][21] However, KC progression after corneal collagen crosslinking (CXL) is usually determined through longitudinal evaluation of specific topographic or tomographic parameters, such as maximum keratometry (Kmax), mean keratometry (Kmean), corneal astigmatism (Astg), posterior radius of curvature from the 3.0 mm centered on the thinnest point (PRC), or minimum pachymetry (PachyMin). 22,23 Some studies also use longitudinal CDVA evaluation to determine KC progression after CXL.…”
Section: Introductionmentioning
confidence: 99%
“…15 Although not validated, some parameters are frequently used as KC progression criteria in the literature, in studies that use the Pentacam ® tomography system (OCULUS Optikgeräte GmbH, Wetzlar, Germany). 13,[16][17][18][19][20][21] However, KC progression after corneal collagen crosslinking (CXL) is usually determined through longitudinal evaluation of specific topographic or tomographic parameters, such as maximum keratometry (Kmax), mean keratometry (Kmean), corneal astigmatism (Astg), posterior radius of curvature from the 3.0 mm centered on the thinnest point (PRC), or minimum pachymetry (PachyMin). 22,23 Some studies also use longitudinal CDVA evaluation to determine KC progression after CXL.…”
Section: Introductionmentioning
confidence: 99%