Results 1 to 10 of about 13,534 (158)

Agreement of corneal curvature and central corneal thickness obtained from a swept-source OCT and Pentacam in ectopia lentis patients [PDF]

open access: yesInternational Journal of Ophthalmology, 2020
AIM: To assess the inter-device consistency of corneal curvature and central corneal thickness between Pentacam and a swept-source Fourier-domain anterior segment optical coherence tomography (AS-OCT) in ectopia lentis patients. METHODS: Totally 72 eyes
Guang-Ming Jin   +5 more
exaly   +3 more sources

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

open access: yesFrontiers 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

Age, gender, corneal diameter, corneal curvature and central corneal thickness in Nigerians with normal intra ocular pressure

open access: yesJournal of Optometry, 2012
Purpose: To investigate the relationship between age, gender, corneal diameter, central corneal curvature, central corneal thickness (CCT) and intraocular pressure in Nigerians with normal intraocular pressure.
Eghosasere Iyamu, Ebi Osuobeni
exaly   +3 more sources

Comparison of corneal curvature parameters obtained from two different instruments—Pentacam and VX120 [PDF]

open access: yesInternational Journal of Ophthalmology, 2019
AIM: To explore whether the same corneal curvature parameters and anterior chamber depth measured by Pentacam and VX120 have a good consistency and can replace each other.
Qing-Wei Zhang   +2 more
doaj   +2 more sources

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

open access: yesFrontiers 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   +14 more
doaj   +2 more sources

Corneal Curvature: the Influence of Corneal Accommodation and Biomechanics on Corneal Shape. [PDF]

open access: yesTransl Vis Sci Technol, 2019
Variation in the presence and magnitude of corneal conformational changes during accommodation may predict postoperative ectasia following refractive surgery and assist in the early diagnosis of corneal ectatic disorders. The current study aimed to establish a baseline for corneal refractive changes during ocular accommodation and to clarify the role ...
Wallace HB   +3 more
europepmc   +3 more sources

Influence of corneal astigmatism, corneal curvature and meridional differences on corneal hysteresis and corneal resistance factor [PDF]

open access: yesAustralasian journal of optometry, The, 2011
This study investigated the influence of corneal astigmatism, corneal curvature and meridional differences on corneal hysteresis (CH) and the corneal resistance factor (CRF) in a group of normal Chinese persons.Ninety-five participants were recruited and data from the eye with higher corneal astigmatism were analysed. The anterior corneal curvature was
Andrew Kwok-Cheung Lam
exaly   +3 more sources

Corneal Thickness, Curvature and Topographic Indices: Implications for Keratoconus Screening in a South African University Clinic Population [PDF]

open access: yesClinical Optometry
Pheagane Motsime William Nkoana, Neo Makgatho, Rethabile Ramatsobane Lekgau, Mufhatutshedzwa M Randima, Munei Masiagwala, Moloantoa Morena, Lebogang Shaun Ntsobe, Phuti Germina MatlhadishaDepartment of Optometry, University of Limpopo, Polokwane, South ...
Nkoana PMW   +7 more
doaj   +2 more sources

Correlation between Central Corneal Thickness, Corneal Curvature and Axial Length of The Eye in Myopic & Hypermetropic Patients

open access: yesSVU - International Journal of Medical Sciences, 2023
Background: The refractive errors are the most common cause of visual deterioration worldwide. Correction of refractive errors can be divided into optical & surgical methods with global tendency toward the surgical correction of refractive errors which ...
Ahmed Hasan Aldghaimy   +3 more
doaj   +1 more source

Analysis of keratometric measurements in accordance with axial length in an aged population

open access: yesScientific Reports, 2022
To investigate keratometric measurements according to axial length in an aged population. Patients requiring cataract surgery with keratometric measurements from four different ophthalmic devices (autorefractor/keratometer, Scheimpflug imaging, corneal ...
Sung Uk Han   +7 more
doaj   +1 more source

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