Results 71 to 80 of about 59,665 (311)

Comparison and Correlation of the Donor–Recipient Interface Changes and Visual Outcomes Between nDSEK and DSEK

open access: yesJournal of Ophthalmology, Volume 2025, Issue 1, 2025.
Purpose: This study aimed to compare the donor–recipient interface changes between non‐Descemet stripping endothelial keratoplasty (nDSEK) and Descemet stripping endothelial keratoplasty (DSEK) and assess their correlation with the postoperative best spectacle‐corrected visual acuity (BCVA).
Minghai Huang   +8 more
wiley   +1 more source

Introduction to Laser Physics [PDF]

open access: yesarXiv, 2020
This paper is a basic introduction to laser physics, especially that relevant to accelerator science. It presents the essential physics of a laser, some of the different types of laser system available, the propagation of laser beams, and the key diagnostics that are used for lasers.
arxiv  

Comparative analysis of the efficacy of astigmatic correction after wavefront-guided and wavefront-optimized LASIK in low and moderate myopic eyes [PDF]

open access: yes, 2017
AIM: To evaluate and compare the efficacy of the astigmatic correction achieved with laser in situ keratomileusis (LASIK) in eyes with myopic astigmatism using wavefront-guided (WFG) and wavefront-optimized (WFO) ablation profiles.
Alsahn, Mahmoud F.   +3 more
core   +2 more sources

The Combined Utilization of Epithelial Thickness and Tomographic Parameters in Keratoconus Detection

open access: yesJournal of Ophthalmology, Volume 2025, Issue 1, 2025.
Purpose: To evaluate the performance of the anterior segment optical coherence tomography (AS‐OCT) and Scheimpflug–Placido tomographic (SPT) indices in differentiating suspect keratoconus (SKC) from normal (N). Methods: In this cross‐sectional study, one eye of each patient was scanned on AS‐OCT and SPT.
Abdelrahman Salman   +11 more
wiley   +1 more source

Effect of iris registration on outcomes of FEMTOLASIK for myopia and myopic astigmatism. [PDF]

open access: yes, 2017
PURPOSE To compare the visual and refractive outcomes after FEMTOLASIK with and without iris registration. METHODS In this randomized, prospective, comparative, contralateral eye study, 118 eyes of 59 patients with myopia and myopic astigmatism ...
Ghoreishi, Mohammad.   +3 more
core   +1 more source

The Impact of Horizontal Marking on the VisuMax Surgical Bed Headrest on the Outcomes of Myopic Astigmatism Correction With Small Incision Lenticule Extraction

open access: yesJournal of Ophthalmology, Volume 2025, Issue 1, 2025.
Aims: To investigate the impact of horizontal markings on the VisuMax surgical bed headrest on the accuracy of astigmatism correction in small incision lenticule extraction (SMILE). Methods: This retrospective study categorized preoperative astigmatism severity into low‐astigmatism (−0.25 to −1.75 D) and moderate‐to‐high astigmatism (−2.00 to −4.50 D).
Yun Wang   +6 more
wiley   +1 more source

Topography-guided neutralization technique for the management of flap complication in laser in situ keratomileusis

open access: yesIndian Journal of Ophthalmology, 2017
A 29-year-old male was referred following a flap loss after the creation of a thin, irregular flap with a visual acuity of logMAR 0.1 with −2.0 DS−2.75 DC × 175°.
Rohit Shetty   +4 more
doaj   +1 more source

Role of Optical Coherence Tomography on Corneal Surface Laser Ablation [PDF]

open access: yes, 2012
This paper focuses on reviewing the roles of optical coherence tomography (OCT) on corneal surface laser ablation procedures. OCT is an optical imaging modality that uses low-coherence interferometry to provide noninvasive cross-sectional imaging of ...
Kara-Junior, Newton   +3 more
core   +2 more sources

Quality of Life After Laser Vision Correction: A Systematic Review and Meta‐Analysis

open access: yesJournal of Ophthalmology, Volume 2025, Issue 1, 2025.
Purpose: To analyze patients’ quality of life (QOL) after laser vision correction (LVC) from a worldwide literature review. Methods: Studies of prospective or cross‐sectional design which evaluated QOL in patients after LVC and compared that to preoperative values or a matched group of emmetropes were included.
Alireza Peyman   +8 more
wiley   +1 more source

Retreatment of residual error after femtosecond laser-assisted in-situ keratomileusis in correcting high hyperopia

open access: yesJournal of the Egyptian Ophthalmological Society, 2017
Purpose The aim of the present study was to evaluate the results of femtosecond laser-assisted in-situ keratomileusis (LASIK) in correcting high hyperopia. Patients and methods The study was carried out at El-Gowhara Eye Center, Ismailia, Egypt.
Amr A Gab-Alla
doaj   +1 more source

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