Corneal curvature
Original Article Correlation of diopter level with axis oculi and corneal curvature in adolescents with ametropic eyes
... emmetropization, corneal curvature has a compensatory ...while corneal curva- ture gradually ...trast, corneal curvature has a relatively weak ...eyeball, corneal ...
6
Comparison of Goldmann applanation tonometry and Pascal dynamic contour tonometry in relation to central corneal thickness and corneal curvature
... Methods: This was a prospective study of 185 eyes from 97 subjects, attending outpatient ophthalmology appointments, who underwent intraocular pressure measurements by GAT and Pascal DCT. CCT and corneal ...
8
Comparison of reliability and repeatability of corneal curvature assessment with six keratometers
... spherical curvature alone ignoring the accuracy of the astigmatic orientation and magnitude been analysed in ...examine corneal curvature through vector analysis 6-11 as this provides a more detailed ...
25
Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality
... and corneal curvature to study more closely the influence of these variables on total ocular spherical ...of corneal curvature, shows that spherical aberration is anterior segment driven, ...
6
Posterior corneal curvature changes following Refractive Small Incision Lenticule Extraction
... posterior corneal curvature changes after ReLEx SMILE in patients with moderate and high myopia; however, these changes were not significant for low ...
6
Changes in Posterior Corneal Curvature, Asphericity and Longitudinal Spherical Aberrations Following Myopic Laser in Situ Keratomileusis (LASIK)
... posterior corneal curvature, asphericity and longitudinal spherical aberrations between preoperatively and 3 months postoperatively, to look for significant ...Italy) corneal topography machine for ...
6
Corneal Curvature Changes and Uncorrected Distance Visual Acuity after Corneal Collagen Cross-Linking for Progressive Keratoconus: A one year follow-up survey
... Corneal collagen cross-linking (CXL) is a therapeutic intervention to decrease the progression of keratoconus and reduce the need for keratoplasty. The present study aimed to efficacy of CXL on corneal ...
6
Central corneal thickness of Iraqi population in relation to age, gender, refractive errors, and corneal curvature: a hospital-based cross-sectional study
... Objective: The aim of this study is to determine the mean CCT among a normal Iraqi popula- tion and to correlate between CCT and age, gender, refraction, and corneal curvature. Patients and methods: This ...
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Effect of Corneal Cone Location on Corneal Curvature Changes and Uncorrected Distance Visual Acuity after Corneal Collagen Cross-Linking for Progressive Keratoconus: A one-year Survey
... suggests corneal cone location to be of particular importance with regard to corneal shape, uniform UV radiation, and the way in which the cornea is affected ...incorporating corneal curvature ...
6
Distribution of axial length, anterior chamber depth, and corneal curvature in an aged population in South China
... In our study, there was no correlation between K and age. However, a trend for age-related increases of K has been reported in young subjects. Hayashi et al. reported that the degree of both horizontal and verti- cal ...
7
Two-year topographic and densitometric outcomes of accelerated (45 mW/cm2) transepithelial corneal cross-linking for keratoconus: a case-control study
... equal dosage. Meanwhile, A-CXL procedures could be performed with or without epithelium [15, 25]. A meta-analysis [26] concluded that, in general, ATE-CXL is effective and safe for KC stabilization, however, C-CXL re- ...
10
Factors Determining Effective Orthokeratology Treatment for Controlling Juvenile Myopia Progression
... Corneal curvature, anterior Chamber Depth and central corneal thickness are all independent fac- tors, which can influence the occurrence of com- plications ...larger corneal curva- ture, ...
6
Dynamic curvature topography for evaluating the anterior corneal surface change with Corvis ST
... anterior corneal curvature (ACC) and the thickness of different corneal ...the corneal dynamic properties in vivo ...as corneal hysteresis is useful in the diagnosis of eye diseases ...
16
The effect of Gonioscopy on keratometry and corneal surface topography
... by corneal power measurements are the most important fac- tors in intraocular lens power calculations ...and corneal topogra- phy-based Sim K to such an extent so as to cause a change in the power of the ...
6
Association of ocular biometric parameters with diabetic retinopathy
... In conclusion, no association of spherical equivalent and corneal curvature was observed with the prevalence and severity of diabetic retinopathy. Axial length and anterior chamber depth do not appear to ...
5
A Review of Astigmatism - A Refractive Error correctable by Cylindrical glasses
... in corneal curvature. In a cross-sectional study of corneal and total astigmatism, Anstice found that internal astigmatism remained relatively stable over time and that changes in astigmatism ...
8
Corneal densitometry in high myopia
... in corneal-related parameters in HM eyes, such as corneal curvature, corneal thickness, and endothelial density, are still under debate [4 – ...that corneal hysteresis was significantly ...
6
Age-related changes of ocular parameters in Korean subjects
... Analysis of the correlations between age and other ocular parameters were below. The mean spherical equiva- lent of refractive error was − 1.38 diopters, and there was a strong positive correlation between hyperopic ...
6
Comparison of keratometric measurements between color light-emitting diode topography and Scheimpflug camera
... that corneal astigmatism measured by Pentacam HR showed a difference of ...age corneal curvature and the average astigmatism size measured by the two devices showed small differences of maximum ...
9
Impact of the anterior-posterior corneal radius ratio on intraocular lens power calculation errors
... total corneal refractive power showed greater IOL power calculation errors, and in cases with an AP ratio close to the average, the keratometric refractive power differed slightly from the total corneal ...
10