Results 11 to 20 of about 5,820 (173)

Automatic Segmentation and Statistical Analysis of the Foveal Avascular Zone

Technologies
This study facilitates the extraction of foveal avascular zone (FAZ) metrics from optical coherence tomography angiography (OCTA) images, offering valuable clinical insights and enabling detailed statistical analysis of FAZ size and shape across three ...
Geanina Totolici, Mihaela Miron, Anisia-Luiza Culea-Florescu   +2 more
doaj   +2 more sources

Foveal avascular zone in oculocutaneous albinism. [PDF]

BMJ Case Rep, 2021
Optical coherence tomography angiography imaging in two patients with oculocutaneous albinism, one with severe nystagmus, showed persistence of both the superficial and the deep retinal capillary plexus adding another vascular feature to the foveal hypoplasia.
Mansour HA, Uwaydat S, Yunis MH, Mansour AM.   +3 more
europepmc   +3 more sources

Multimodal imaging of aberrant macular microvessel crossing the foveal avascular zone in two young adults

BMC Ophthalmology, 2020
Background The traditional view is that there are no vessels in the foveal avascular zone. The two cases we report show microvessels crossing the foveal avascular zone.
Xianming Jiang, Cong Zheng, Fangfang Du, Shibei Ai   +3 more
doaj   +1 more source

Relationship between the Foveal Avascular Zone and Foveal Pit Morphology [PDF]

Investigative Opthalmology & Visual Science, 2012
To assess the relationship between foveal pit morphology and size of the foveal avascular zone (FAZ).Forty-two subjects were recruited. Volumetric images of the macula were obtained using spectral domain optical coherence tomography. Images of the FAZ were obtained using either a modified fundus camera or an adaptive optics scanning light ...
Dubis, Adam M., Hansen, Benjamin R., Cooper, Robert F., Beringer, Joseph, Dubra, Alfredo, Carroll, Joseph   +5 more
openaire   +3 more sources

Foveal Avascular Zone and Its Relationship to Foveal Pit Shape [PDF]

Optometry and Vision Science, 2012
ABSTRACT Purpose. To investigate the retinal microvasculature at the fovea and peripheral retina in humans using an adaptive optics scanning laser ophthalmoscope (AOSLO) and to examine the association of foveal avascular zone (FAZ) and foveal pit morphology.
Toco Y P, Chui, Zhangyi, Zhong, Hongxin, Song, Stephen A, Burns   +3 more
openaire   +2 more sources

Acircularity and circularity indexes of the foveal avascular zone in high myopia [PDF]

Scientific Reports, 2021
Abstract This study explored the association between foveal avascular zone (FAZ) parameters and high myopia using optical coherence tomography angiography. We divided 106 eyes of 106 patients into quartiles based on the axial length.
Helong Piao, Yue Guo, Haowei Zhang, Mi Sun Sung, Sang Woo Park   +4 more
openaire   +4 more sources

Association of foveal avascular zone with the metamorphopsia in epiretinal membrane [PDF]

Scientific Reports, 2020
AbstractThis study was to investigate the relationship between the metamorphopsia and foveal avascular zone (FAZ) parameter in eyes with epiratinal membrane (ERM). We studied patients with an ERM visited retinal service unit at the Kagoshima University Hospital or Shirai Hospital.
Shiihara, Hideki, Terasaki, Hiroto, Sonoda, Shozo, Kakiuchi, Naoko, Yamaji, Hidetaka, Yamaoka, Shinnosuke, Uno, Toshihiko, Watanabe, Mutsumi, Sakamoto, Taiji   +8 more
openaire   +2 more sources

FAZSeg: A New Software for Quantification of the Foveal Avascular Zone

Clinical Ophthalmology, 2021
Various ocular diseases and high myopia influence the anatomical reference point Foveal Avascular Zone (FAZ) dimensions. Therefore, it is important to segment and quantify the FAZs dimensions accurately. To the best of our knowledge, there is no automated tool or algorithms available to segment the FAZ's deep retinal layer.
VK Viekash, Janarthanam Jothi Balaji, Vasudevan Lakshminarayanan   +2 more
openaire   +5 more sources

The Shape of the Foveal Avascular Zone: When a Circle Isn't Round. [PDF]

Transl Vis Sci Technol, 2023
Quantitative assessment of OCT-A images includes evaluating circularity and roundness of the FAZ. Inconsistent or inaccurate mathematical definitions of these metrics impacts their utility as biomarkers and impairs the ability to combine and compare results across studies.
Grieshop J, Gaffney M, Linderman RE, Cooper RF, Carroll J.   +4 more
europepmc   +3 more sources

Association of foveal avascular zone change and glaucoma progression. [PDF]

Br J Ophthalmol, 2023
Background/aimsTo investigate the association between longitudinal changes of foveal avascular zone (FAZ) area and the rate of structural and functional progression in glaucoma.MethodsA longitudinal cohort included 115 eyes (46 glaucoma suspect and 66 primary open-angle glaucoma) of 81 patients having ≥2 year follow-up, and ≥4 visits with optical ...
Nishida T, Moghimi S, Walker E, Gunasegaran G, Wu JH, Kamalipour A, Mahmoudinezhad G, Zangwill LM, Weinreb RN.   +8 more
europepmc   +5 more sources