Results 1 to 10 of about 3,715 (187)

Accuracy of intraocular lens calculation formulas in cataract patients with steep corneal curvature. [PDF]

open access: goldPLoS ONE, 2020
ObjectiveTo compare the accuracy of five kinds of intraocular lens calculation formulas (SRK/T, Haigis, Hoffer Q, Holladay and Barrett Universal Ⅱ) in cataract patients with steep curvature cornea ≥ 46.0 diopters.MethodsThis is a retrospective study of ...
Chenguang Zhang   +7 more
doaj   +8 more sources

Effects of steep-axis incision on corneal curvature in one-handed phacoemulsification [PDF]

open access: goldInternational Journal of Ophthalmology, 2019
AIM: To examine the effects of one-handed phacoemulsification with steep-axis incision on corneal curvature and analyze surgically induced astigmatism (SIA) on the true net power, anterior and posterior corneal surfaces. METHODS: Patients with cataracts
Pan-Pan Li   +5 more
doaj   +6 more sources

Modified deep anterior lamellar keratoplasty for the treatment of advanced keratoconus with steep corneal curvature to help in eliminating the wrinkles in the Descemet′s membrane

open access: diamondIndian Journal of Ophthalmology, 2014
Aims: To determine the clinical efficacy of modified deep anterior lamellar keratoplasty (DALK) for the treatment of advanced-stage keratoconus with steep curvature.
Hamid Khakshoor   +3 more
doaj   +4 more sources

Comparison between the CASIA SS-1000 and Pentacam in measuring corneal curvatures and corneal thickness maps [PDF]

open access: yesBMC Ophthalmology, 2023
Purpose To compare the intra-device repeatability and inter-device reproducibility between two anterior segment imaging instruments, the CASIA SS-1000 (Tomey Corp., Nagoya, Japan) and Pentacam (OCULUS, Arlington, WA) in measuring anterior segment ...
Robert M. Feldman   +5 more
doaj   +3 more sources

Corneal eccentricity and related factors in Chinese children and adolescents with astigmatism [PDF]

open access: yesBMC Ophthalmology
Objective To quantify the distribution of anterior corneal eccentricity (e value) and identify associated factors in Chinese children and adolescents with astigmatism.
Lixing Zhou   +7 more
doaj   +2 more sources

Ocular biometry agreement among ZW-30, IOLMaster 700, and sirius in cataract patients [PDF]

open access: yesScientific Reports
Accurate ocular biometry is crucial for the success of refractive cataract surgery. This study aims to assess the consistency and differences of a new biometer, the ZW-30, compared with the mainstream devices IOLMaster 700 and Sirius in patients with ...
Junjie Yang   +6 more
doaj   +2 more sources

Corneal morphological changes after discontinuation of long-term orthokeratology and SMILE surgery outcomes: a retrospective comparative study [PDF]

open access: yesBMC Ophthalmology
Background Orthokeratology (OK) has been widely adopted as a non-surgical intervention to slow myopia progression in children and adolescents. In China, where myopia prevalence is exceptionally high, OK lenses are commonly prescribed to school-aged ...
Kun Zhou   +6 more
doaj   +2 more sources

Interocular agreement and differences of ocular growth in cataract patients [PDF]

open access: yesScientific Reports
We performed this study to investigate the interocular agreement and differences in ocular growth in cataract patients. Ocular biometrics in both eyes of 715 cataract patients were measured by Lenstar LS-900 and retrospectively collected.
Ling Jin   +8 more
doaj   +2 more sources

Comparison of the reliability of corneal curvature and eccentricity measurements in myopic eyes using four different devices [PDF]

open access: yesFrontiers in Medicine
Myopia is a global public issue which is increasing worldwidely. Instruments are essential for measurement in the diagnosis and evaluation of myopia. Comparing the agreement of corneal curvature and eccentricity measurements obtained using four different
Dongyi Qu   +4 more
doaj   +2 more sources

Early assessment of visual outcomes and corneal stability in eyes with a pre-planned residual stromal thickness of 280 to 300 μm following small incision lenticule extraction [PDF]

open access: yesInternational Journal of Ophthalmology
AIM: To assess early visual outcomes and corneal stability following small incision lenticule extraction (SMILE) in eyes with a pre-planned residual stromal thickness (RST) ranging from 280 to 300 μm.
Yin Liu   +5 more
doaj   +2 more sources

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