Results 41 to 50 of about 86,297 (272)

Multimodal imaging features of a spontaneously resolved unilateral congenital macrovessel-related macular edema in a 13-year-old boy

open access: yesGMS Ophthalmology Cases, 2020
Purpose: Congenital retinal macrovessels (CRM) are large aberrant blood vessels that cross the horizontal raphe. Visual acuity may be negatively affected in cases afflicted with CRM due to macular serous detachment, hemorrhage, exudation, foveolar cyst ...
Ipek, Sefik Can   +3 more
doaj   +1 more source

Optical Coherence Tomography Angiography Features of Iris Racemose Hemangioma in 4 Cases. [PDF]

open access: yes, 2017
Importance: Optical coherence tomography angiography (OCTA) allows visualization of iris racemose hemangioma course and its relation to the normal iris microvasculature. Objective: To describe OCTA features of iris racemose hemangioma.
Chien, Jason L.   +4 more
core   +2 more sources

Transfer Learning for Automated OCTA Detection of Diabetic Retinopathy [PDF]

open access: yesTranslational Vision Science & Technology, 2019
Purpose To test the feasibility of using deep learning for optical coherence tomography angiography (OCTA) detection of diabetic retinopathy. Methods A deep-learning convolutional neural network (CNN) architecture, VGG16, was employed for this study.
David Le   +7 more
semanticscholar   +1 more source

Study on the Optic Nerve Fiber Layer Thickness and Changes in Blood Flow in Myopic Children

open access: yesInternational Journal of General Medicine, 2021
TaiNan Lin,1 Ling Su,2 JinHua Lin,1 Hong Qiu1 1Department of Ophthalmology, Fujian Provincial Governmental Hospital, Fuzhou, People’s Republic of China; 2School Health Department, Fujian Center for Disease Control and Prevention, Fuzhou, People’s ...
Lin T, Su L, Lin J, Qiu H
doaj  

Evaluation of optical coherence tomography angiography changes in nonarteritic anterior ischemic optic neuropathy

open access: yesIndian Journal of Ophthalmology, 2023
Purpose: To study the long-term microvasculature changes at the macula and the optic disk in eyes with nonarteritic anterior ischemic optic neuropathy (NAION). Methods: Patients with acute NAION of less than 6 weeks duration were included.
Swati Phuljhele   +4 more
doaj   +1 more source

Assessing the Spatial Relationship Between Fixation and Foveal Specializations [PDF]

open access: yes, 2016
Increased cone photoreceptor density, an avascular zone (FAZ), and the displacement of inner retinal neurons to form a pit are distinct features of the human fovea.
Carroll, Joseph   +5 more
core   +2 more sources

The ‘Octa-Benzene’, Cyclo-octatetraene (C8H8) [PDF]

open access: yesNature, 1947
The fact that cyclo-octatetraene—in contrast to benzene—shows a markedly unsaturated character has generally been used as an argument in favour of the assumption that the molecule contains alternate double and single bonds. The resonance energy, which is not much smaller per CH-group than that of benzene, makes the correctness of this assumption seem ...
O, BASTIANSEN, O, HASSEL, A, LANGSETH
openaire   +2 more sources

Multilayered retinal pigment epithelial detachment: an optical coherence tomography angiography perspective

open access: yesGMS Ophthalmology Cases, 2021
A new entity termed multilayered pigment epithelial detachment ieen to occur with the use of multiple intravitreal anti-VEGF agents. istinct appearance of a spindle-shaped elevation with bands of hyporeflective and hyperreflective tissue is seen on ...
Ratra, Dhanashree, Mishra, Samarth
doaj   +1 more source

Distribution of different forms of phosphorus in calcareous soils from middle and south of Iraq [PDF]

open access: yesAl-Qadisiyah Journal For Agriculture Sciences, 2020
A survey of the chemical way to determine the amount of different phosphorus forms in calcareous soils was carried out on 22 calcareous soils fertilized for many years with phosphate fertilizers from central and southern Iraq.
E.A Makttoof, J.K. Kassim, K.H Khuzale
doaj   +1 more source

Peripapillary and fovea avascular zone optical coherence tomography angiography parameters in exfoliation glaucoma versus primary open-angle glaucoma versus healthy eyes

open access: yesIndian Journal of Ophthalmology, 2022
Purpose: To examine the differences in the peripapillary vascular parameters and foveal-avascular-zone (FAZ) vascularity parameters between primary open-angle-glaucoma (POAG) patients versus exfoliation-glaucoma (XFG) patients versus healthy subjects ...
Ofira Zloto   +4 more
doaj   +1 more source

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