Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Shwetabh Verma"'
Autor:
Shwetabh Verma, Samuel Arba Mosquera
Publikováno v:
Photonics, Vol 11, Iss 11, p 1047 (2024)
(1) Background: Ultrashort high-energy laser pulses may cause interaction mechanisms, including photodisruption and plasma-induced ablation in the medium. It is not always easy to distinguish between these two processes, as both interaction mechanism
Externí odkaz:
https://doaj.org/article/6476bd0bd7c14426b8893d918571b828
Autor:
Samuel Arba Mosquera, Shwetabh Verma
Publikováno v:
Photonics, Vol 11, Iss 9, p 822 (2024)
(1) Background: Defining the optimum center for laser refractive corrections is difficult, with many of the available approaches having pros and cons. Decentered ablations result in undesirable side effects like halos, glare, monocular diplopia, and
Externí odkaz:
https://doaj.org/article/6562b702f8b74d2f9eb7fa44a33d51c4
Publikováno v:
Vision, Vol 7, Iss 3, p 50 (2023)
Seasonal changes and varying degree of corneal hydration has been linked to excimer laser corneal ablation rates. The use of PMMA as a calibration material in refractive lasers is well established. However, PMMA ablation may be equally affected by se
Externí odkaz:
https://doaj.org/article/083644bf2d4b41e78d6a4051e58f85c0
Publikováno v:
Eye and Vision, Vol 5, Iss 1, Pp 1-13 (2018)
Abstract Background In this retrospective randomized case series, we compared bilateral symmetry between OD and OS eyes, intercorneal differences and Functional Optical Zone (FOZ) of the corneal aberrations. Methods Sixty-seven normal subjects (with
Externí odkaz:
https://doaj.org/article/f079887ab86c45c9a4b4ddc870ae6578
Publikováno v:
Eye and Vision, Vol 5, Iss 1, Pp 1-13 (2018)
Abstract Background To retrospectively analyse strategies for adjusting refractive surgery plans with reference to the preoperative manifest refraction. Methods We constructed seven nomograms based on the refractive outcomes (sphere, cylinder, axis [
Externí odkaz:
https://doaj.org/article/498399d363a2490a86aa5ebe9294bf3f
Autor:
Samuel Arba Mosquera, Shwetabh Verma
Publikováno v:
Journal of Optometry, Vol 9, Iss 4, Pp 219-230 (2016)
We analyze the role of bilateral symmetry in enhancing binocular visual ability in human eyes, and further explore how efficiently bilateral symmetry is preserved in different ocular surgical procedures. The inclusion criterion for this review was st
Externí odkaz:
https://doaj.org/article/035274b1e53140e7ac87683f3b9fcee2
Publikováno v:
Photonics, Vol 7, Iss 4, p 116 (2020)
(1) Background: The purpose of the study is to present a simple theoretical account of the effect of translation of coma and spherical aberrations (SA) on refractive error and higher order aberrations. (2) Methods: A computer software algorithm was i
Externí odkaz:
https://doaj.org/article/a19af76c1bb245baada4fcc73fb2cdd0
Publikováno v:
PLoS ONE, Vol 13, Iss 6, p e0197503 (2018)
PURPOSE:To highlight the potential shortcomings associated with the current use Rasch analysis for validation of ophthalmic questionnaires, and to present an alternative application of Rasch analysis to derive insights specific to the cohort of patie
Externí odkaz:
https://doaj.org/article/ab08d3c40027440bb08988db06afc945
Autor:
Arie L. Marcovich, Ruth Goldschmidt, Rudy M.M.A. Nuijts, Isabelle E.Y. Saelens, Jurriaan Brekelmans, Shwetabh Verma, Avigdor Scherz, Alexander Brandis, Alexandra Goz, Tos T. J. M. Berendschot, Samuel Arba-Mosquera, Mor M. Dickman
Publikováno v:
Acta Ophthalmologica, 100(4), 422-430. Wiley
Purpose To determine corneal cross-linking (CXL) efficacy and chromophore penetration after excimer laser-assisted patterned de-epithelialization. Methods Two-hundred-twenty porcine eyes were de-epithelialized ex vivo, either fully (mechanical; n = 8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::791c9122c2a26f5fe70b08b5254e59a7
https://doi.org/10.1111/aos.15021
https://doi.org/10.1111/aos.15021
Autor:
Luise Krüger, Shwetabh Verma, Samuel Arba-Mosquera, Pascal Naubereit, Len Zheleznyak, Wayne H. Knox, Simas Sobutas
Publikováno v:
Advanced Optical Technologies. 10:363-373
A method to determine the optimum laser parameters for maximizing laser induced refractive index change (LIRIC) while avoiding exceeding the damage threshold for different materials with high water content (in particular, polymers such as hydrogels o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74e0f62593f3e739c7a512a595426751
https://doi.org/10.1515/aot-2021-0052
https://doi.org/10.1515/aot-2021-0052