Results 111 to 120 of about 42,051 (253)

The Results of Phacoemulsification and Toric Intraocular Lens Implantation in Patients with High Astigmatism and Cataract

open access: yes, 2012
Pur po se: To report the results of phacoemulsification and toric intraocular lens (IOL) implantation in patients with cataract and high astigmatism. Ma te ri al and Met hod: Medical records of 21 eyes of 17 patients (6 men, 11 women) with 1,5 diopter (
Ahmet Akman   +7 more
core   +1 more source

Cryogen‐Aided Chromatographic Purification of Millimole Quantities of Methane for Spectroscopic Clumped Isotope Analysis

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Quantum cascade laser absorption spectroscopy (QCLAS) is a fast and reliable method for analyzing the bulk (𝛿13C‐CH4, 𝛿D‐CH4) and clumped isotopic (∆13CH3D and ∆12CH2D2) composition of methane. However, precise measurements of ∆12CH2D2 require 0.5 to 1.8 mmol of purified methane (equivalent to 15 to 40 mL at STP).
Nico Kueter   +6 more
wiley   +1 more source

Clinical, Behavioral and Neuroradiological Phenotype in an Italian Cohort of Patients With Xia Gibbs Syndrome: A Multicenter Cross‐Sectional Study and Systematic Literature Review

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 9, Page 2067-2079, September 2026.
ABSTRACT Heterozygous variants in the AHDC1 gene are associated with Xia Gibbs Syndrome (XGS), a genetic disorder with a highly variable phenotype. Cognitive impairment, motor delay, language delay, neonatal hypotonia, and sleep apnea are considered “cardinal” signs of the disease.
Giulia Cinelli   +18 more
wiley   +1 more source

Tolerance to residual astigmatism of an isofocal intraocular lens

open access: yes
Received 08 June 2023; Revised 12 October 2023; Accepted 23 October 2023; Published 11 November 2023; Issue Date April 2024. This study was funded by the Spanish Agencia Estatal de Investigación (grant number PID2020-114582RB-I00/AEI/10.13039 ...
Cuellar, Fátima   +5 more
core   +1 more source

Repositioning of Vertical Implantable Phakic Contact Lens

open access: yesClinical Case Reports, Volume 14, Issue 9, September 2026.
Vertical orientation of Implantable Phakic Contact Lens. ABSTRACT Implantable phakic contact lens (IPCL) V2.0 has a special patterned hole on the leading left corner to ensure correct orientation and positioning. Incorrect orientation is an absolute indication for repositioning.
Sushank Bhalerao   +4 more
wiley   +1 more source

Effect of Simple Myopic Astigmatism and Its Axis on Near Visual Performance for Thai Alphabet in Pseudophakic Eyes [PDF]

open access: yes
Pakpum Pakviwat, Chureeporn Moollaong, Sasinut Borvonshivabhumi, Vatookarn Roongpoovapatr Department of Ophthalmology, Mettapracharak (Wat Rai Khing) Hospital, Nakhon Pathom, ThailandCorrespondence: Pakpum Pakviwat, Department of Ophthalmology ...
Moollaong C   +3 more
core  

One‐Year Results of Accelerated Transepithelial Corneal Cross‐Linking for Progressive Keratoconus: A Prospective Interventional Study

open access: yesEye &ENT Research, Volume 3, Issue 3, Page 168-174, September 2026.
ABSTRACT Background Keratoconus is a progressive corneal ectatic disorder. Accelerated transepithelial corneal cross‐linking (ATE‐CXL) aims to halt progression while preserving the epithelium, but evidence on its 12‐month efficacy requires further evaluation.
Rafea Allawi Fayyadh   +4 more
wiley   +1 more source

Costello Syndrome Associated With Somatic Mosaicism of Rare p.Gly13Asp HRAS Variant: Expanding the Phenotypic Spectrum

open access: yesMolecular Genetics &Genomic Medicine, Volume 14, Issue 9, September 2026.
We report a case of a 22‐year‐old woman with predominantly cutaneous involvement in whom whole‐exome sequencing from both blood‐ and hair‐derived DNA samples identified somatic mosaicism for the rare HRAS p.Gly13Asp variant. This case expands the phenotypic spectrum of Costello syndrome and underscores the importance of multitissue genomic analysis ...
Jovan Lalosevic   +6 more
wiley   +1 more source

Slowing of myopia progression by spectacles with highly aspherical lenslets—A narrative review

open access: yesOptometry and Vision Science, Volume 103, Issue 9, September 2026.
ABSTRACT Purpose A new generation of myopia control spectacles has emerged, including spectacle lenses with highly aspherical lenslet technology (HAL lenses). To date, HAL lenses have only been thoroughly evaluated in a single site randomized clinical trial in China and a recently published, multicenter, North American clinical trial.
Olga Prenat, Mark A. Bullimore
wiley   +1 more source

Selective suture cutting for control of astigmatism following cataract surgery

open access: yesIndian Journal of Ophthalmology, 1992
Use of 10-0 monofilament nylon in ECCE cataract surgery leads to high with the rule astigmatism. Many intraoperative and post operative methods have been used to minimise post operative astigmatism.
Bansal R, Gupta Amod, Grewal SPS
doaj  

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