Results 21 to 30 of about 1,249,902 (304)
IJRETINA (International Journal of Retina), 2021 Introduction: Impaired blood flow is an early sign of retinal dysfunction in diabetes. Impaired blood flow of the radial peripapillary capillaries can affect the Retinal Nerve Fiber Layer (RNFL) or ganglion cell function.
Sindi Dwijayanti +5 more
doaj +1 more source
A deep learning method for automatic segmentation of the bony orbit in MRI and CT images
Scientific Reports, 2021 This paper proposes a fully automatic method to segment the inner boundary of the bony orbit in two different image modalities: magnetic resonance imaging (MRI) and computed tomography (CT).
Jared Hamwood +4 more
doaj +1 more source
F1000Research, 2022 Background: While scleral lens practise has improved over the years due to factors such as availability of lenses with better materials and designs as well as experience of practitioners, a lack of objectivity appears to remain in terms of assessment of ...
Simmy Chaudhary +3 more
doaj +1 more source
A Complex Lens for a Complex Eye [PDF]
Integrative and Comparative Biology, 2017 A key innovation for high resolution eyes is a sophisticated lens that precisely focuses light onto photoreceptors. The eyes of holometabolous larvae range from very simple eyes that merely detect light to eyes that are capable of high spatial resolution.
Aaron L, Stahl +3 more
openaire +2 more sources
Pax6 interactions with chromatin and identification of its novel direct target genes in lens and forebrain. [PDF]
, 2013 Pax6 encodes a specific DNA-binding transcription factor that regulates the development of multiple organs, including the eye, brain and pancreas. Previous studies have shown that Pax6 regulates the entire process of ocular lens development.
Tessa Walcher +48 more
core +2 more sources
F1000Research, 2022 Background: While scleral lens practise has improved over the years due to factors such as availability of lenses with better materials and designs as well as experience of practitioners, a lack of objectivity appears to remain in terms of assessment of ...
Simmy Chaudhary +3 more
doaj +1 more source
Amino Acids, 2006 The eye lens is a fascinating organ as it is in essence living transparent matter. Lenticular transparency is achieved through the peculiarities of lens morphology, a semi-apoptotic process where cells elongate and loose their organelles and the precise molecular arrangement of the bulk of soluble lenticular proteins, the crystallins.
Hoehenwarter, W. +2 more
openaire +3 more sources
Spherical aberration in contact lens wear
, 2008 INTRODUCTION: The aim of the present studies was to investigate the effect on spherical aberration of different non custom-made contact lenses, both with and without aberration control.
Lindskoog, Pettersson A +4 more
core +2 more sources
The role of chloride in the lens of the eye [PDF]
Experimental Physiology, 1997 Until recently, the investigation of membrane ion transport mechanisms and their relationship with cataract formation has mainly focused on sodium, potassium and calcium. The specific role of chloride in solute transport within the lens has been given little attention. Rather, chloride was considered as simply the counterion to sodium.
J J, Zhang, T J, Jacob
openaire +2 more sources
Intraocular light scatter as modeled through a stratified medium [PDF]
, 2001 Intraocular light scatter is modeled through a stratified medium. It is shown that the eye lens possesses properties of an interference filter. In conditions that may mimic opacification, as found with cataract formation, such a filter may have stop ...
Pierscionek, Barbara +2 more
core +1 more source