Results 1 to 10 of about 1,249,902 (304)
Eye Lens Radiation Exposure During TAVI: Current Evidence and Imaging-Based Strategies for Dose Reduction [PDF]
TomographyBackground: Transcatheter aortic valve implantation (TAVI) is increasingly performed in fluoroscopy-intensive environments, raising concerns about occupational eye lens dose (equivalent dose to the eye lens, Hp (3)) and the risk of radiation-induced ...
Chiara Zanon +3 more
doaj +2 more sources
PLoS ONE, 2022 BackgroundIn some situations it is necessary to use biometry from the fellow eye for lens power calculation prior to cataract surgery. The purpose of this study was to analyse the lateral differences in biometric measurements and their impact on the lens
Achim Langenbucher +6 more
doaj +2 more sources
The Absolute Sensitivity of Lens and Compound Eyes
Zeitschrift Fur Naturforschung - Section C Journal of Biosciences, 1974 Abstract The numbers of light quanta available to photoreceptors of lens-and different types of com pound eyes are calculated on the basis of photometric considerations. It is shown that the results depend upon the situation in the optical environment: For point-like lightsources such as stars receptors in compound eyes generally ...
K Kirschfeld
exaly +4 more sources
Current Biology, 2020 Eyes are not unique to animals. As described by Nilsson and Marshall, prominent eyes, complete with retina and lens, have unexpectedly evolved in single cell dinoflagellates.
Nilsson, Dan-E., Marshall, Justin
openaire +5 more sources
Frontiers in Nutrition, 2023 ObjectiveGlaucoma has currently become the second leading cause of blindness in the world. Serum vitamin B12 level has been found to be involved in the development and progression of glaucoma.
Zhongwei Liu +17 more
doaj +1 more source
Bibliometric analysis and mapping knowledge domain of pterygium: 2000-2019 [PDF]
International Journal of Ophthalmology, 2021 AIM: To track the knowledge structure, topics in focus, and trends in emerging research in pterygium in the past 20y. METHODS: Base on the Web of Science Core Collection (WoSCC), studies related to pterygium in the past 20y from 2000-2019 have been ...
Yu-Chi Wang +5 more
doaj +1 more source
The eye lens cytoskeleton [PDF]
Eye, 1999 During lens cell differentiation there are a number of very characteristic morphological changes that occur. These include a 50- to 100-fold increase in cell length as the equatorial lens epithelial cells differentiate into fibre cells and the loss of the cellular organelles such as mitochondria, nuclei, Golgi apparatus and endoplasmic reticulum ...
Quinlan, R. A. +8 more
openaire +3 more sources
Scientific Reports, 2022 Deep learning methods have enabled a fast, accurate and automated approach for retinal layer segmentation in posterior segment OCT images. Due to the success of semantic segmentation methods adopting the U-Net, a wide range of variants and improvements ...
Jason Kugelman +8 more
doaj +1 more source
Diagnosis and management of transient smartphone blindness: A literature review
JKKI (Jurnal Kedokteran dan Kesehatan Indonesia), 2023 The development of smartphones worldwide has rapidly increased the number of smartphone users. Although smartphones have many benefits, prolonged use causes various visual disorders, of which transient smartphone blindness (TSB) is one of the most ...
Azzahra Afifah +2 more
doaj +1 more source
Acute lens opacity induced by different kinds of anesthetic drugs in mice [PDF]
International Journal of Ophthalmology, 2019 AIM: To study whether specific anesthetic drugs or tear layer evaporation was primarily responsible for the acute cataract and what the change of lens structure is in anesthetized mice.
Xiao-Tong Li +3 more
doaj +1 more source