Results 71 to 80 of about 54,051 (195)

Longitudinal progression of retinal nonperfusion in clinically stable diabetic retinopathy

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To longitudinally assess and quantify changes in retinal nonperfusion (NP) in clinically stable diabetic retinopathy (DR) using ultra‐widefield fluorescein angiography (UWF‐FA) and optical coherence tomography angiography (OCTA). Methods Fifty‐one eyes from thirty‐three patients were followed for a mean of 15.9 ± 11.4 months.
Stela Vujosevic   +8 more
wiley   +1 more source

Fovea

open access: yes, 1997
Fovea. Retina-close up.

core  

Regional growth kinetics of geographic atrophy in age‐related macular degeneration with and without fovea‐sparing

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose Fovea‐sparing geographic atrophy (GA) patients retain near‐normal central vision. To better understand GA progression in relation to the fovea, we performed a semi‐automated image analysis of regional atrophy growth in a long‐term GA natural‐history cohort. Methods Prospective‐observational, single‐centre‐study (02/2013–07/2025) at the
Daniel R. Muth   +8 more
wiley   +1 more source

Retinal Vessel Extraction with the Image Ray Transform [PDF]

open access: yes, 2010
Extraction of blood vessels within the retina is an important task that can help in detecting a number of diseases, including diabetic retinopathy. Current techniques achieve good, but not perfect performance and this suggests that improved preprocessing
Nixon, Mark, Cummings, Alastair
core   +2 more sources

Retinal capillary density in relation to diabetes duration and levels of glycaemia in young patients with type 1 diabetes

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To examine retinal capillary plexus characteristics and their correlation with diabetes duration and levels of glycaemia in young type 1 diabetes (T1D) patients. Methods Cross‐sectional analysis of baseline data from an observational, prospective cohort study of 69 patients with T1D aged 6–32 (mean 16) years in T1D duration subgroups ≤
Marie Elise Wistrup Torm   +6 more
wiley   +1 more source

Age-Related Associations of Foveal Structural Parameters in Healthy Adults: A Comparative Analysis of Biological and Chronological Age

open access: yesVision
Background: This research compared the relationship between foveal optical coherence tomography (OCT) parameters and two age measures—biological and chronological—in healthy adults.
Anait S. Khalatyan   +5 more
doaj   +1 more source

Specialized photoreceptor composition in the raptor fovea

open access: yes, 2017
The retinae of many bird species contain a depression with high photoreceptor density known as the fovea. Many species of raptors have two foveae, a deep central fovea and a shallower temporal fovea.
Olsson, Peter   +15 more
core   +1 more source

Premium Intraocular Lens Selection in Patients With Glaucoma: A Clinical Review

open access: yesClinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Glaucoma frequently coexists with cataract, but glaucomatous functional loss, ocular‐surface disease, anatomical abnormalities, and treatment‐related refractive variability may reduce tolerance of premium intraocular lenses. This narrative review critically appraises evidence relevant to lens selection in glaucoma. Central visual‐field status,
Zhihao Liu   +3 more
wiley   +1 more source

Microcystic Macular Edema Caused by Non-Glaucomatous Optic Atrophy: A Single-Center, Retrospective, Cohort Study in France

open access: yesVision
Optic Atrophy (OA) can be associated with the development of microcystic macular edema (MME) in the perifoveal retinal inner nuclear layer (INL). We aimed here to retrospectively determine the prevalence of MME in patients with non-glaucomatous OA in our
Tibaut Coutureau   +5 more
doaj   +1 more source

Association between Axial Length and Optic Disc-Fovea Distance.

open access: yes, 2015
Association between Axial Length and Optic Disc-Fovea Distance.
Ya Xing Wang (310734)   +6 more
core   +1 more source

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