Results 11 to 20 of about 135,873 (298)

Comparison of visual performance recovery after thin-flap LASIK with 4 femtosecond lasers [PDF]

open access: yesInternational Journal of Ophthalmology, 2017
AIM: To compare the speed of visual recovery following myopic thin-flap LASIK with four femtosecond lasers. METHODS: Eighty-eight eyes of 46 patients who were consecutively scheduled for bilateral LASIK with the IntraLase FS60 (Group 1), Femto LDV ...
Jing Zhang   +3 more
doaj   +1 more source

The Refraction of the Newborn [PDF]

open access: yesthe american journal of the medical sciences, 1906
n ...
Elschnig,   +2 more
openaire   +2 more sources

A Characteristics Set Computation Model for Internal Wavenumber Spectra and Its Validation with MODIS Retrieved Parameters in the Sulu Sea and Celebes Sea

open access: yesRemote Sensing, 2022
The quasi-linear or nonlinear interactions among different ocean motions dominate the system internal structure and appearance feature presented in spatial and temporal evolution.
Yongzeng Yang   +5 more
doaj   +1 more source

Controlling Refraction Using Sub-Wavelength Resonators

open access: yesApplied Sciences, 2018
We construct metamaterials from sub-wavelength nonmagnetic resonators and consider the refraction of incoming signals traveling from free space into the metamaterial.
Yue Chen, Robert Lipton
doaj   +1 more source

Refraction in Preschool Children in Kazanlak, Bulgaria [PDF]

open access: yesFolia Medica, 2020
Introduction: The refractive state of the eye changes as the eye’s axial length increases and the cornea and lens flatten. In general, eyes are hyperopic at birth, become slightly more hyperopic until the age of 7, which at this point we see a ...
Kiril Slaveykov, Kalina Trifonova
doaj   +3 more sources

Essential Infantile Esotropia: A Course of Treatment From Our Experience

open access: yesFrontiers in Pediatrics, 2021
Background: Essential infantile esotropia (EIE) is the most common type of childhood esotropia. Although its classical approach is surgical, less invasive techniques have been proposed as an adjunct or alternative to traditional surgery.
Stefano Pensiero   +5 more
doaj   +1 more source

Application of Schlieren photography for visualisation of a pulsed gaseous target [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2023
The article describes Schlieren photography, realised using a laser plasma as a radiationsource. Optical systems prepared for visualisation of a stationary gas outflow and a pulsed gaseoustarget, produced in an atmosphere or vacuum environment are ...
Wiktoria Rafalak   +4 more
doaj   +1 more source

Autorefraction, Retinoscopy, Javal’s Rule, and Grosvenor’s Modified Javal’s Rule: The Best Predictor of Refractive Astigmatism

open access: yesJournal of Ophthalmology, 2016
The aim of the study was to determine the level of agreement between Javal’s rule, autorefraction, retinoscopy, and refractive astigmatism and to determine which technique is the most suitable substitute when subjective refraction is not applicable using
Kofi Asiedu   +2 more
doaj   +1 more source

Refraction [PDF]

open access: yesJournal of the American Medical Association, 1909
n ...
openaire   +2 more sources

Refract Journal, Issue 1: "Refraction" [PDF]

open access: yesRefract: An Open Access Visual Studies Journal, 2018
Refract Journal, Issue 1: "Refraction" 
openaire   +4 more sources

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