Results 41 to 50 of about 88,265 (286)

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

Increased papillary microcirculation in inactive uveitis patients by optical coherence tomography angiography

open access: yesAll Life, 2023
Aim: To quantitatively analyze the vascular and structure abnormalities in the papillary areas in eyes with noninfectious uveitis during different periods using optical coherence tomography angiography (OCTA).
Yao Xu, Xuefei Zhu
doaj   +1 more source

OCT Angiography: A promising tool in Glaucoma

open access: yesDelhi Journal of Ophthalmology, 2021
Optical Coherence Tomography Angiography, a non-invasive imaging modality provides a quantitative assessment of microcirculation of retina and choroid in various layers.
Priya Saraf, Neha Sachdeva, Hage Amung
doaj   +1 more source

Glaucomatous vertical vessel density asymmetry of the temporal raphe detected with optical coherence tomography angiography. [PDF]

open access: yes, 2020
Changes in retinal vasculature and ocular circulation may play an important role in the glaucoma development and progression. We evaluated the vertical asymmetry across the temporal raphe of the deep retinal layer vessel density, using swept-source ...
Araie, Makoto   +6 more
core  

Chorioretinal Toxicity of Perfluorooctane (Ala Octa) [PDF]

open access: yesAmerican Journal of Ophthalmology, 2020
Purpose: To compare outcomes of patient who underwent surgery using perfluorooctane (PFO; C8F18; Ala Octa) with those who underwent surgery with perfluorodecalin (F-Decalin). Design: Retrospective, consecutive, comparative, interventional case series. Methods: A total of 48 eyes that underwent vitrectomy with PFO were compared to 29 eyes that underwent
Tobalem, Stéphan Jonathan   +6 more
openaire   +2 more sources

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