Results 141 to 150 of about 43,431 (244)
Journal of School Health, Volume 96, Issue 10, October 2026.ABSTRACT Background Vision impairment affects approximately 1 in 4 school‐aged children in the United States, and yet challenges in connecting to care exist. Poor vision has been linked to diminished academic performance, social development challenges, and poor mental health.
YuQing Xu, Xinxing Guo, Megan Collins
wiley +1 more source
Rapid 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
Effect of Posterior Corneal Surgically Induced Astigmatism on Toric Intraocular Lens Power Calculations [PDF]
Stephen Stewart,1– 3 Tun Kuan Yeo,3 Salissou Moutari,4 Richard N McNeely,1 Jonathan E Moore1 1Cathedral Eye Clinic, Belfast, UK; 2Centre for Public Health, Queen’s University Belfast, Belfast, UK; 3National Health Group Eye Institute, Tan Tock Seng ...
Yeo TK +4 more
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Paired Opposite Clear Corneal Incision in Cataract Patients with Different Types of Astigmatism
Clinical OphthalmologyMehmet Icoz,1,* Ozlem Aktas Ozaltun2,* 1Department of Ophthalmology, Yozgat City Hospital, Yozgat, Turkey; 2Department of Ophthalmology, Karabük Training and Research Hospital, Karabuk, Turkey*These authors contributed equally to ...
Icoz M, Aktas Ozaltun O
doaj
On the measurement of astigmatism
ON THE MEASUREMENT OF ASTIGMATISM Franciscus Cornelius Donders Library (-) On the measurement of astigmatism (-
Green, John
core
, 2017 Clayton Blehm,1 Richard Potvin2 1Gainesville Eye Associates, Gainesville, GA, 2Science in Vision, Akron, NY, USA Purpose: The aim of this study was to assess the effectiveness of the Verion-LenSx guided arcuate incision technique to reduce refractive ...
Blehm C, Potvin R
core
BMC OphthalmologyBackground To investigate the impact of central corneal astigmatism on postoperative visual outcomes in patients with trifocal intraocular lens (IOL) implantation.
Lan Wang +5 more
doaj +1 more source
Is astigmatism a factor in the causation of glaucoma
, 1888 IS ASTIGMATISM A FACTOR IN THE CAUSATION OF GLAUCOMA Franciscus Cornelius Donders Library (-) Is astigmatism a factor in the causation of glaucoma (-
Theobald, Samuel
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Effect of 2.2 mm opposite clear corneal incisions post phacoemulsification on total corneal astigmatism in a tertiary eye hospital of Eastern India. [PDF]
Indian J OphthalmolRaj A +6 more
europepmc +1 more source