Results 291 to 300 of about 143,576 (340)
Some of the next articles are maybe not open access.
Retinal Vessel Dehydrogenase Enzymes
Archives of Ophthalmology, 1964The isolation of the retinal vessels by the trypsin digestion technique 1 allows histochemical studies on this structure. Recently, histochemical studies of several enzyme groups, including the dehydrogenase enzymes, have been reported. 2 The present study is a more detailed study of these dehydrogenase enzymes in the rat, cat, and dog with nitro-blue ...
R, LEVENE, G, HORTON, R, EINAUGLER
openaire +2 more sources
RETINAL VESSELS WHITENING IN RETINITIS PIGMENTOSA
RetinaPurpose: To characterize retinal vessel whitening (RVW) in retinitis pigmentosa (RP). Methods: Single-center cross-sectional study. Review of clinical notes of clinically confirmed patients with RP was performed followed by grading ultra-widefield imaging.
Shaden H. Yassin +8 more
openaire +2 more sources
Visualization of Retinal Blood Vessels
2021The retina offers a unique opportunity to directly visualize blood vessels in vivo noninvasively. Over the past few decades, several new imaging techniques have been adapted to study the retinal vasculature in the laboratory in animal models and in the clinic in human subjects.
Wankun, Xie +4 more
openaire +2 more sources
Retinal Vessels in Down's Syndrome
Archives of Ophthalmology, 1973The fundus vessels of 50 institutionalized mongols were compared with the fundus vessels of 50 sex-matched controls of similar age. Mongols appear to have significantly more retinal vessels crossing the margin of the optic nerve head. The high number of vessels is associated with an unusual, spoke-like appearance of the retinal vasculature and may be ...
E J, Williams +2 more
openaire +2 more sources
Archives of Ophthalmology, 1995
WE ARE INDEBTED to McAllister and Constable 1 for introducing new hope for the management of retinal vein occlusion, as reported in this issue of theArchives. As a very common retinal vascular disorder, probably second only to diabetic retinopathy, and as a disorder that frequently does not seem to respond to therapy, the vision loss of vein occlusion ...
openaire +1 more source
WE ARE INDEBTED to McAllister and Constable 1 for introducing new hope for the management of retinal vein occlusion, as reported in this issue of theArchives. As a very common retinal vascular disorder, probably second only to diabetic retinopathy, and as a disorder that frequently does not seem to respond to therapy, the vision loss of vein occlusion ...
openaire +1 more source
FABC: Retinal Vessel Segmentation Using AdaBoost
IEEE Transactions on Information Technology in Biomedicine, 2010This paper presents a method for automated vessel segmentation in retinal images. For each pixel in the field of view of the image, a 41-D feature vector is constructed, encoding information on the local intensity structure, spatial properties, and geometry at multiple scales.
Lupascu, Carmen Alina +2 more
openaire +3 more sources
Congenital retinal vessel tortuosity
Clinical and Experimental Optometry, 2021Sameeksha Agrawal +2 more
openaire +2 more sources
Ceskoslovenska oftalmologie, 1993
The authors observed an occurrence of tortuosity of retinal vessels from the group of 5,000 investigations of an ocular fundus. Elimination of all local reasons or symptoms of general diseases, even in spite of the great possibility of modification of this feature, three characteristic types were found.
T, Streicher, J, Spirková
openaire +1 more source
The authors observed an occurrence of tortuosity of retinal vessels from the group of 5,000 investigations of an ocular fundus. Elimination of all local reasons or symptoms of general diseases, even in spite of the great possibility of modification of this feature, three characteristic types were found.
T, Streicher, J, Spirková
openaire +1 more source
Retinal vessel oxygen saturation and vessel diameter in retinitis pigmentosa at various ages
Graefe's Archive for Clinical and Experimental Ophthalmology, 2015This study was conducted to determine whether oxygen saturation and retinal blood vessel diameter are affected by retinitis pigmentosa (RP) at various ages.Relative oxygen saturation was measured in retinal blood vessels in 68 RP patients and 136 normal subjects using the Oxymap T1 retinal oximeter.
Yao, Zong +8 more
openaire +2 more sources
Retinal vessel labeling technique
2017 E-Health and Bioengineering Conference (EHB), 2017A retinal vessel classification procedure is proposed. In a first step, from the thinned vessel image, a vascular graph is extracted and filtered. Then the graph edges near the optic disc are localized and the main branches connected to these initial edges are identified.
Florin Rotaru +5 more
openaire +1 more source