Correlation between Refractive Error, Corneal Power, and Thickness in a Large Population with a Wide Range of Ametropia

Abstract

In the myopia group, the KM showed close correspondence with KA and an inverse relationship with SE and CCT. In hyperopes, an inverse correlation between the KM and SE was found, but no correlation with CCT was evident.

Non‐invasive assessment of corneal and conjunctival deterioration in soft contact lens users using anterior segment optical coherence tomography

“…Contradictory results have been found concerning the relationship between myopia and central corneal thickness. Some found a positive correlation with myopia, some found a negative correlation with myopia, while the others found no correlation . Further, in light of controversial results concerning the relationship between myopia and corneal thickness measurements, several studies evaluating the thickness of corneal layers in contact lens wearers did not include both refraction‐matched subjects and subjects with emmetropia as control groups.…”

“…Some found a positive correlation with myopia, 16 some found a negative correlation with myopia, 17 while the others found no correlation. 18,19 Further, in light of controversial results concerning the relationship between myopia and corneal thickness measurements, several studies 7,12,13 evaluating the thickness of corneal layers in contact lens wearers did not include both refraction-matched subjects and subjects with emmetropia as control groups. They compared the corneal layer thicknesses of SCL group only with those of myopic subjects without a history of soft contact lens wear, which might cause misleading conclusions to be drawn.…”

Central corneal thickness and its relationship to ocular parameters in young adult myopic eyes

“…During the past decade, central corneal thickness (CCT) has been wildly evaluated in the general population for its effect on the accuracy of intraocular pressure (IOP) measurements and its importance in pre‐operative assessments in corneal surgery. It has been noticed that age, gender, race and environmental and genetic factors can affect CCT and it is also affected by ocular parameters, such as axial length, refraction, corneal curvature and IOP in particular.…”

A Comprehensive Evaluation of the Precision (Repeatability and Reproducibility) of the Oculus Pentacam HR

“…It received U.S. Food and Drug Administration approval in 2003 and has been used extensively in clinical practice and research settings. [1][2][3] The Pentacam HR tomographer was launched in 2005, with five times the image resolution of the basic, classic model. It has an improved optic design with a 1.45-megapixel camera.…”