Results 11 to 20 of about 455,466 (310)

Normative data and percentile curves for axial length and axial length/corneal curvature in Chinese children and adolescents aged 4-18 years. [PDF]

Br J Ophthalmol, 2023
Purpose To develop age-specific and gender-specific reference percentile charts for axial length (AL) and AL/corneal radius of curvature (AL/CR) and, to use percentiles to determine probability of myopia and estimate refractive error (RE).
He X, Sankaridurg P, Naduvilath T, Wang J, Xiong S, Weng R, Du L, Chen J, Zou H, Xu X.   +9 more
europepmc   +2 more sources

Changes in corneal curvature and astigmatism in senile cataract patients after phacoemulsification [PDF]

Frontiers in Medicine
PurposeAnalysis of changes in corneal curvature and astigmatism after phacoemulsification for senile cataracts.MethodsRetrospective collection of clinical data from patients who underwent uncomplicated phacoemulsification at the First Affiliated Hospital
Yan-Hui Xiao, Yue-Qi Liu, Zhi-Gang Chen
doaj   +2 more sources

Corneal curvature, asphericity, and aberrations after transepithelial photorefractive keratectomy and femtosecond laser-assisted in situ keratomileusis for myopia: A prospective comparative study. [PDF]

Indian J Ophthalmol, 2020
Purpose: We aimed to compare transepithelial photorefractive keratectomy (TPRK) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK) for myopia treatment by analyzing corneal curvature, asphericity (Q-value), and corneal aberration.
Zhang YL, Xu XH, Cao LJ, Liu L.
europepmc   +2 more sources

Genome-wide association meta-analysis of corneal curvature identifies novel loci and shared genetic influences across axial length and refractive error. [PDF]

Commun Biol, 2020
Corneal curvature, a highly heritable trait, is a key clinical endophenotype for myopia - a major cause of visual impairment and blindness in the world.
Fan Q, Pozarickij A, Tan NYQ, Guo X, Verhoeven VJM, Vitart V, Guggenheim JA, Miyake M, Tideman JWL, Khawaja AP, Zhang L, MacGregor S, Höhn R, Chen P, Biino G, Wedenoja J, Saffari SE, Tedja MS, Xie J, Lanca C, Wang YX, Sahebjada S, Mazur J, Mirshahi A, Martin NG, Yazar S, Pennell CE, Yap M, Haarman AEG, Enthoven CA, Polling J, Consortium for Refractive Error and Myopia (CREAM), UK Biobank Eye and Vision Consortium, Hewitt AW, Jaddoe VWV, van Duijn CM, Hayward C, Polasek O, Tai ES, Yoshikatsu H, Hysi PG, Young TL, Tsujikawa A, Wang JJ, Mitchell P, Pfeiffer N, Pärssinen O, Foster PJ, Fossarello M, Yip SP, Williams C, Hammond CJ, Jonas JB, He M, Mackey DA, Wong TY, Klaver CCW, Saw SM, Baird PN, Cheng CY.   +59 more
europepmc   +2 more sources

Effect of central corneal curvature on corneal material stiffness parameter acquired by dynamic corneal responses [PDF]

Frontiers in Bioengineering and Biotechnology, 2023
The stress–strain index (SSI) is a measure of corneal material stiffness, which is obtained using the Corvis ST algorithm based on dynamic corneal response parameters. The reduced SSI corresponds to the longer axial length (AL).
Zhe Chu, Zhe Chu, Zhe Chu, Qi Ren, Qi Ren, Qi Ren, Wenjie Su, Wenjie Su, Wenjie Su, Wei Cui, Wei Cui, Wei Cui, Jie Wu, Jie Wu, Jie Wu   +14 more
doaj   +2 more sources

The Effect of Corneal Thickness, Densitometry and Curvature on Intraocular Pressure Measurements Obtained by Applanation, Rebound and Dynamic Contour Tonometry [PDF]

Vision, 2020
Evaluate the effect of corneal thickness, densitometry and curvature on intraocular pressure (IOP) measurements obtained by Goldmann applanation tonometry (GAT), non-contact tonometry (NCT), rebound tonometry (RT), and dynamic contour tonometry (DCT).
Marco Antonio de Castro Olyntho, Lucas Bertazzi Augusto, Carolina P. B. Gracitelli, Andrew J. Tatham   +3 more
openalex   +2 more sources

The Relationship between Corvis ST Tonometry Measured Corneal Parameters and Intraocular Pressure, Corneal Thickness and Corneal Curvature. [PDF]

PLoS ONE, 2015
The purpose of the study was to investigate the correlation between Corneal Visualization Scheimpflug Technology (Corvis ST tonometry: CST) parameters and various other ocular parameters, including intraocular pressure (IOP) with Goldmann applanation ...
Ryo Asaoka, Shunsuke Nakakura, Hitoshi Tabuchi, Hiroshi Murata, Yoshitaka Nakao, Noriko Ihara, Ulfah Rimayanti, Makoto Aihara, Yoshiaki Kiuchi   +8 more
doaj   +2 more sources

Corneal Curvature, Astigmatism, and Aberrations in Marfan Syndrome with Lens Subluxation: Evaluation by Pentacam HR System [PDF]

Scientific Reports, 2018
Marfan syndrome (MFS) is associated with abnormalities of corneal biometric characteristics. We conducted a retrospective case-control study including 55 eyes of the MFS patients with lens subluxation and 53 normal eyes of the control subjects to ...
Jiahui Chen, Qinghe Jing, Yating Tang, Dong‐Jin Qian, Yi Lü, Yongxiang Jiang   +5 more
openalex   +2 more sources

Template Curvature Influences Cell Alignment to Create Improved Human Corneal Tissue Equivalents [PDF]

Advanced Biosystems, 2017
To accurately create corneal stromal equivalents with native‐like structure and composition, a new biofunctionalized, curved template is developed that allows the precise orientation of cells and of their extracellular matrix.
Ricardo M. Gouveia, Elena Koudouna, James V. Jester, Francisco C. Figueiredo, Che J. Connon   +4 more
openalex   +2 more sources

Comparison of changes in refractive error and corneal curvature following small-incision lenticule extraction and femtosecond laser-assisted in situ keratomileusis surgery

Indian Journal of Ophthalmology, 2018
Purpose: To compare visual acuity, refractive error, corneal curvature, and the stability of these parameters during the early postoperative period following small-incision lenticule extraction (SMILE) and femtosecond laser-assisted in situ ...
Ya L Zhang, Li J Cao, Hong W Chen, Xiang H Xu, Zhao N Li, Lei Liu   +5 more
doaj   +2 more sources