Results 111 to 120 of about 15,479 (253)

Pressure-Induced Stromal Keratopathy after Surface Ablation Surgery

open access: yesCase Reports in Ophthalmology
Introduction: The purpose of this clinical report was to describe an unprecedented case of bilateral pressure-induced stromal keratopathy (PISK) following corneal photorefractive keratectomy, associated with presumed herpetic keratitis, and to present ...
Jaime Guedes   +7 more
doaj   +1 more source

Newer Intraocular Pressure Measurement Techniques [PDF]

open access: yes, 2016
An elevated intraocular pressure (IOP) has been shown to be one of the major risk factors for glaucoma. It is of utmost importance to obtain accurate and precise IOP when dealing with patients with ocular hypertension and glaucoma, especially patients ...
Brusini, Paolo   +2 more
core   +1 more source

Natural linewidth analysis of d-band photoemission from Ag(110) [PDF]

open access: yes, 2000
We report a high-resolution angle-resolved study of photoemission linewidths observed for Ag(110). A careful data analysis yields k$-resolved upper limits for the inverse inelastic lifetimes of $d$-holes at the X-point of the bulk band structure. At the upper $d$-band edge the hole-lifetime is $\tau_h \geq 22 $fs, i.e.
arxiv   +1 more source

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

Comparative evaluation of intraocular pressure with an air-puff tonometer versus a Goldmann applanation tonometer

open access: yesClinical Ophthalmology, 2012
Qasim K FarhoodDepartment of Ophthalmology, College of Medicine, University of Babylon, Babylon, IraqPurpose: Tonometry, or measurement of intraocular pressure (IOP), is one of the most important examination procedures in ophthalmic clinics, and IOP is ...
Farhood QK
doaj  

Lifetime of d-holes at Cu surfaces: Theory and experiment [PDF]

open access: yes, 2001
We have investigated the hole dynamics at copper surfaces by high-resolution angle-resolved photoemission experiments and many-body quasiparticle GW calculations. Large deviations from a free-electron-like picture are observed both in the magnitude and the energy dependence of the lifetimes, with a clear indication that holes exhibit longer lifetimes ...
arxiv   +1 more source

Long‐term visual outcomes and ocular complications in children with Marner's hereditary cataracts operated in the period 1940–2021

open access: yesActa Ophthalmologica, Volume 102, Issue 8, Page 914-921, December 2024.
Abstract Purpose To investigate visual development and long‐term complications after cataract surgery in childhood. Methods This cross‐sectional study included patients from a family with Marner's hereditary cataracts who had cataract surgery before 18 years of age. The study was conducted from 1 January 2022 until 31 December 2022.
Diana Chabané Schmidt   +2 more
wiley   +1 more source

Goldmann and modified Goldmann tonometry measuring intraocular pressure changes in eyes which underwent myopic laser in situ Keratomileusis and photorefractive keratectomy

open access: yesBMC Ophthalmology, 2022
Purpose Compare intraocular pressure (IOP) measured by a standard Goldmann applanation tonometer prism (IOPg) and a modified correcting applanation tonometer surface Goldmann prism (IOPc) before and after laser in situ keratomileusis (LASIK) and ...
Robert Edward T. Ang   +3 more
doaj   +1 more source

Addition Spectrum Oscillations of Fractional Quantum Hall Dots [PDF]

open access: yesarXiv, 1996
Quantum dots in the fractional quantum Hall regime are studied using a Hartree formulation of composite fermion theory. Under appropriate conditions the chemical potential of the dots will oscillate periodically with B due to the transfer of composite fermions between quasi-Landau bands.
arxiv  

Equation satisfiability in solvable groups [PDF]

open access: yesarXiv, 2020
The study of the complexity of the equation satisfiability problem in finite groups had been initiated by Goldmann and Russell (2002) where they showed that this problem is in polynomial time for nilpotent groups while it is NP-complete for non-solvable groups.
arxiv  

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