Results 51 to 60 of about 42,651 (303)

Objective Accommodation Amplitude Measurements Using a New Autorefractometer Device

open access: yesBeyoglu Eye Journal, 2019
INTRODUCTION[|]To measure the value of objective accommodation amplitude (AA) in patients using the new autorefractometer device and to evaluate the effects of age, refraction errors, pupil diameter on objective AA measurements.[¤]METHODS[|]Three hundred
Kemal Özülken, Hasan Kızıltoprak
doaj   +1 more source

Interaction of accommodative and subjective diagnostic criteria of accommodation disorders

open access: yesРоссийский офтальмологический журнал, 2019
Purpose: to study the relationship of accommodative (objective) and subjective criteria of different types of accommodation disorders.Material and methods. 62 patients (124 eyes) with myopic refraction, aged 10 to 18, were divided into 6 groups according
M. V. Makhova, V. V. Strakhov
doaj   +1 more source

Oscillator phase noise: a tutorial [PDF]

open access: yes, 2000
Linear time-invariant (LTI) phase noise theories provide important qualitative design insights but are limited in their quantitative predictive power.
Hajimiri, Ali, Lee, Thomas H.
core   +1 more source

Introducing Dynamic Stimulation Aberrometry

open access: yesOphthalmology Science, 2023
Purpose: The objective measurement of binocular accommodation remains a challenge. The dynamic stimulation aberrometry (DSA) system uses wavefront measurements to dynamically assess accommodation.
Maximilian Hammer   +2 more
doaj   +1 more source

The low KM-phosphodiesterase inhibitor denbufylline enhances neuronal excitability in guinea pig hippocampus in vitro [PDF]

open access: yes, 1990
The actions of the phosphodiesterase inhibitor denbufylline on the excitability of hippocampal neurons were investigated by means of extracellular and intracellular recordings.
Alzheimer, Christian   +3 more
core   +1 more source

Human eyes do not need monochromatic aberrations for dynamic accommodation. [PDF]

open access: yes, 2017
PURPOSE: To determine if human accommodation uses the eye's own monochromatic aberrations to track dynamic accommodative stimuli. METHODS: Wavefront aberrations were measured while subjects monocularly viewed a monochromatic Maltese cross moving ...
Benard   +34 more
core   +1 more source

Changes in accommodative function following small-incision lenticule extraction for high myopia.

open access: yesPLoS ONE, 2020
PurposeTo examine whether the amplitude of accommodation, the accommodative response, and the accommodative facility is affected and correlated with changes in higher-order aberrations for patients with high myopia surgically treated with small-incision ...
Anders Gyldenkerne   +4 more
doaj   +1 more source

Nearwork-induced transient myopia and accommodation function before and after laser-assisted in situ keratomileusis surgery

open access: yesIndian Journal of Ophthalmology, 2021
Purpose: To assess the change in Near Induced Transient Myopia (NITM) and other accommodation parameters, before and after undergoing LASIK surgery for myopia correction. Methods: Twenty-nine myopic subjects were recruited from a tertiary eye hospital in
Viswanathan Sivaraman   +4 more
doaj   +1 more source

Switching dynamics of spatial solitary wave pixels [PDF]

open access: yes, 1993
Separatrices and scaling laws in the switching dynamics of spatial solitary wave pixels are investigated. We show that the dynamics in the full model are similar to those in the plane-wave limit.
Abraham   +27 more
core   +2 more sources

An energy description of wear mechanisms and its applications to oscillating sliding contacts [PDF]

open access: yes, 2003
To quantify wear rates, the Archard approach is classically applied. It relates the wear volume to the product of the sliding distance and the normal load.
Archard   +22 more
core   +1 more source

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