Results 21 to 30 of about 71,980 (237)

The role of OCT angiography in a study of retinal perfusion after endovitreal intervention due to rhegmatogenous retinal detachment [PDF]

open access: yesКлиническая практика, 2020
OCT angiography is a non-invasive method of the qualitative and quantitative analysis of the retinal perfusion. After rhegmatogenous retinal detachment and vitrectomy with endotamponade, the retinal perfusion changes.
Rinat R. Fayzrakhmanov   +3 more
doaj   +1 more source

Synthesis and characterizations of peripheral octa-amino and octa-amidophthalocyanines

open access: yesJournal of Porphyrins and Phthalocyanines, 2008
Novel 2,3,9,10,16,17,23,24-octaamino substituted Ni(II) phthalocyanine (2) was synthesized from tosylamido (tosyl: toluene-p-sulphonyl) derivative by the cleavage of tosyl groups in the presence of 90% sulfuric acid. Octa-hexanoylamido Ni(II) phthalocyanine (3a) and octa-lauroylamido Ni(II) phthalocyanine (3b) were obtained by reacting of octa-amino ...
Yuksel, Fatma   +2 more
openaire   +2 more sources

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

Normal-Tension Glaucoma: Epidemiology, Pathogenesis, Diagnosis and Treatment. Literature Review. Part 2. Role of Vascular Dysregulation in the Pathogenesis. Treatment of Normal Tension Glaucoma

open access: yesOftalʹmologiâ, 2023
Insufficient blood supply, vascular dysregulation, perfusion pressure and endothelial dysfunction may account for the pathogenic mechanism. OCT angiography (OCTA) measurements have been reported to be useful for glaucoma diagnostics.
N. I. Kurysheva   +3 more
doaj   +1 more source

Possibility of [1,5] sigmatropic shifts in bicyclo[4.2.0]octa-2,4-dienes [PDF]

open access: yes, 2015
The thermal equilibration of the methyl esters of endiandric acids D and E was subject to a computational study. An electrocyclic pathway via an electrocyclic ring opening followed by a ring flip and a subsequent electrocyclization proposed by Nicolaou ...
Catak, Saron   +7 more
core   +2 more sources

Comparative Study of Oct Angiographic Finding in Diabetic Macular Edema After Intravitreal Triamicinilone Acetonide Injection and Intravitreal Ranibizumab Injection [PDF]

open access: yesInternational Journal of Medical Arts, 2022
Background: Diabetic macular edema [DME] is a major factor contributing to the visual deterioration in most developed nations. OCTA helps visualization of diabetic microvascular changes such as microaneurysms, FAZ enlargement, and capillary non-perfusion
Mohamad Abu El-Maaty   +2 more
doaj   +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  

Spark plasma sintering synthesis of Ni1−xZnxFe2O4 ferrites: Mössbauer and catalytic study [PDF]

open access: yes, 2012
Nickel-zinc ferrite nanoparticles, Ni1-xZnxFe2O4 (x ¼ 0, 0.2, 0.5, 0.8, 1.0) were prepared by combination of chemical precipitation and spark plasma sintering (SPS) techniques and conventional thermal treatment of the obtained precursors.
Estournès, Claude   +9 more
core   +3 more sources

The synthesis of a symmetrically substituted α-octa(isopentoxy)anthralocyanine [PDF]

open access: yes, 1997
α-Octa(isopentoxy)anthralocyanine has been synthesized and is found to have an unprecedented low-energy Q-band absorption and a low first oxidation ...
Bedworth, Peter V.   +2 more
core   +1 more source

Optical Coherence Tomography Angiography of the Optic Disc; an Overview. [PDF]

open access: yes, 2017
Different diseases of the optic disc may be caused by or lead to abnormal vasculature at the optic nerve head. Optical coherence tomography angiography (OCTA) is a novel technology that provides high resolution mapping of the retinal and optic disc ...
Akil, Handan   +3 more
core   +3 more sources

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