Results 51 to 60 of about 73,863 (160)
Gene Expression within the Amacrine Cell Layer of Chicks after Myopic and Hyperopic Defocus
PURPOSE. Ocular growth is regulated locally by signals produced in the retina. The highly heterogeneous nature of the retina may mask important changes in gene expression during global analysis. This study was conducted to investigate changes in gene expression specifically within the amacrine cell layer (ACL), the most likely generator of growth ...
Regan Scott, Ashby +1 more
openaire +2 more sources
Egr-1 mRNA Expression in Response to Myopic Defocus
Purpose : The expression of the transcription factor Egr-1 appears to act as a biomarker of ocular growth, showing, for the most part, a bi-directional response to opposing growth stimuli.
Karouta, Cindy; id_orcid, Ashby, Regan
core +1 more source
Exposing the retina to a simultaneous myopic defocus is an optical method that has shown a promising effect in slowing the progression of myopia. Optical treatments applying a simultaneous defocus are available in the form of soft contact lenses or ...
Martin Loertscher +3 more
core +1 more source
Anatomy and Pathology Eyes in Various Species Can Shorten to Compensate for Myopic Defocus [PDF]
PURPOSE. We demonstrated that eyes of young animals of various species (chick, tree shrew, marmoset, and rhesus macaque) can shorten in the axial dimension in response to myopic defocus. METHODS. Chicks wore positive or negative lenses over one eye for 3
Neville A Mcbrien +4 more
core
Accurate depth from defocus estimation with video-rate implementation [PDF]
The science of measuring depth from images at video rate using „defocus‟ has been investigated. The method required two differently focussed images acquired from a single view point using a single camera.
Raj, Alex Noel Joseph
core
Background: Lens-induced defocus (LID) alters contrast sensitivity (CS), a key determinant of visual performance, affecting both myopic and non-myopic individuals. Myopia, a prevalent refractive error, is associated with compromised CS, which may be further influenced by optical defocus.
null Mansoor Ahmed +6 more
openaire +1 more source
Colour depth-from-defocus incorporating experimental point spread function measurements [PDF]
Depth-From-Defocus (DFD) is a monocular computer vision technique for creating depth maps from two images taken on the same optical axis with different intrinsic camera parameters.
Claxton, Christopher David
core
Correction of peripheral myopic defocus with HAL spectacle lenses
Current methods to slow myopia progression based on the theory of peripheral defocus have shown their efficacy when used as spectacle, contact, and orthokeratology lenses. Spectacle lenses with highly aspherical microlenslets (Stellest®) were introduced into clinical practice in 2020, and their efficacy was rated highly in different studies.
Elena P. Tarutta +3 more
openaire +1 more source
The objective of this study was to evaluate the efficacy of DIMS (Defocus Incorporated Multiple Segments) in comparison to control group (CTRL) in a wide age group of European progressive myopes (6-26 years).In this prospective, non-randomised observational study, 78 myopes with progression myopia to -0.25 to -8.5 D and astigmatism to -0.25 to -2.25 D ...
Marketa Zakova, Martin Fus, Leos Tejkl
openaire +3 more sources
Psychological and environmental determinants of myopic loss aversion [PDF]
Each economic actor is characterized by his own evaluations, traits, and strategies. Although heterogeneity of economic actors is widely acknowledged, little is known about the factors causing it.
Hopfensitz, Astrid, Wranik, Tanja
core

