Geographic Atrophy Progression in Eyes with Age-Related Macular Degeneration: Role of Fundus Autofluorescence Patterns, Fellow Eye and Baseline Atrophy Area

2014 ◽  
Vol 52 (2) ◽  
pp. 53-59 ◽  
Author(s):  
Figen Batıoğlu ◽  
Yeşim Gedik Oğuz ◽  
Sibel Demirel ◽  
Emin Özmert
Keyword(s):  
Macular Degeneration ◽  
Fundus Autofluorescence ◽  
Geographic Atrophy ◽  
Age Related Macular Degeneration ◽  
Fellow Eye ◽  
Age Related

Fundus autofluorescence and microperimetry in progressing geographic atrophy secondary to age-related macular degeneration

2013 ◽  
Vol 97 (5) ◽  
pp. 622-626 ◽  
Author(s):  
Elisabetta Pilotto ◽  
Francesca Guidolin ◽  
Enrica Convento ◽  
Luigi Spedicato ◽  
Stela Vujosevic ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Fundus Autofluorescence ◽  
Geographic Atrophy ◽  
Age Related Macular Degeneration ◽  
Age Related

scholarly journals Drusen and pigment abnormality predict the development of neovascular age-related macular degeneration in Japanese patients

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0255213
Author(s):  
Shoji Notomi ◽  
Satomi Shiose ◽  
Keijiro Ishikawa ◽  
Yosuke Fukuda ◽  
Kumiko Kano ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Japanese Patients ◽  
Age Related Macular Degeneration ◽  
Neovascular Amd ◽  
Fellow Eye ◽  
Factors Associated ◽  
Asian Populations ◽  
Age Related ◽  
The Mean

Drusen are known to be the important hallmark to predict the development of age-related macular degeneration (AMD). The prevalence of drusen is lower in Asians compared with Caucasians so that the role of signs constituting early AMD is not well established in Asian populations as in Western countries. In this study, we retrospectively investigated clinical characteristics and 5-year incidence of neovascular AMD (nAMD) in the fellow eye of unilateral nAMD patients. Of 296 consecutive unilateral nAMD patients who had been followed up more than 5 years, 170 typical AMD, 119 polypoidal choroidal vasculopathy, and 7 retinal angiomatous proliferation were included. To examine factors associated with nAMD occurrence in the fellow eye, drusen and pigmentary abnormality in the fellow eye were classified into 4 categories; Category 1: no or small drusen < 63 μm (37.2%), Category 2: 63–125 μm medium drusen or pigmentary abnormality (22.2%), Category 3: large drusen > 125 μm (25.0%), Category P: pachydrusen (15.5%). The mean sub-foveal choroidal thickness (SFCT) was Category 1: 276 μm, Category 2: 308 μm, Category 3: 246 μm, and Category P: 302 μm, respectively. Of note, SFCT in Category 2 and Category P was significantly larger than those of Category 3. Finally, the 5-year incidence of nAMD in the fellow eye was 32/296 (10.8%); Category 1: 0/110 (0%), Category 2: 12/66 (18.2%), Category 3: 20/74 (27.0%), and Category P: 0/46 (0%). Thus, signs of intermediate AMD (large drusen) as well as those of early AMD, especially the pigmentary abnormality, may contribute to development of bilateral nAMD in Japanese patients.

Progression of Geographic Atrophy and Impact of Fundus Autofluorescence Patterns in Age-related Macular Degeneration

2007 ◽  
Vol 143 (3) ◽  
pp. 463-472.e2 ◽  
Author(s):  
Frank G. Holz ◽  
Almut Bindewald-Wittich ◽  
Monika Fleckenstein ◽  
Jens Dreyhaupt ◽  
Hendrik P.N. Scholl ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Fundus Autofluorescence ◽  
Geographic Atrophy ◽  
Age Related Macular Degeneration ◽  
Age Related

scholarly journals Percentage of Foveal versus Total Macular Geographic Atrophy as a Predictor of Visual Acuity in Age-related Macular Degeneration

2019 ◽  
Author(s):  
Saghar Bagheri ◽  
Ines Lains ◽  
Rebecca Silverman ◽  
Ivana Kim ◽  
Dean Eliott ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Macular Degeneration ◽  
Fundus Autofluorescence ◽  
Cross Sectional Study ◽  
Geographic Atrophy ◽  
Age Related Macular Degeneration ◽  
Cross Sectional ◽  
Age Related ◽  
The Impact ◽  
Foveal Sparing

AbstractObjectivesTo investigate the relationship between visual acuity (VA), total area of geographic atrophy (GA) and percentage of foveal GA.MethodsMulticenter, retrospective cross-sectional study of patients with GA due to age-related macular degeneration. Demographics, VA, fundus autofluorescence (FAF) and optical coherence tomography (OCT) images were collected. Using FAF images aided by OCT, foveal sparing status, GA pattern, total GA size, and percentage of GA covering the foveal area - area within a 1.5 mm diameter circle centered on the fovea centralis - were assessed. Univariable and multiple linear regression analyses were performed.Results54 eyes (mean age 78.7 ±7.7 (SD), 60.0% female) were studied. Mean VA was 0.8 ± 0.6 logMAR, mean total GA 8.8 ± 6.7 mm2 and mean percentage of foveal GA was 71.5 ± 30.9%. Of all assessed eyes, 48.2% (n = 26) presented with multifocal GA, and 18.5% (n = 10) had foveal sparing. Multiple regression analysis revealed that, controlling for age and GA pattern, the percentage of foveal GA presented a statistically significant association with VA (ß = 0.41, P = 0.004). No significant associations were observed with mean total GA size, while controlling for the same variables (ß = 0.010, P = 0.440).ConclusionPercentage of foveal GA was significantly associated with VA impairment, while the same was not verified for total GA area. These findings suggest that percentage of foveal GA may represent a more useful tool for assessing the impact of GA on VA. Further validation is needed in larger cohorts.

Fundus Autofluorescence and Fundus Perimetry in the Junctional Zone of Geographic Atrophy in Patients with Age-Related Macular Degeneration

2004 ◽  
Vol 45 (12) ◽  
pp. 4470 ◽  
Author(s):  
Steffen Schmitz-Valckenberg ◽  
Stefan Bu¨ltmann ◽  
Jens Dreyhaupt ◽  
Almut Bindewald ◽  
Frank G. Holz ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Fundus Autofluorescence ◽  
Geographic Atrophy ◽  
Age Related Macular Degeneration ◽  
Junctional Zone ◽  
Age Related

scholarly journals Altered photoreceptor metabolism in mouse causes late stage age-related macular degeneration-like pathologies

2020 ◽  
Vol 117 (23) ◽  
pp. 13094-13104 ◽  
Author(s):  
Shun-Yun Cheng ◽  
Joris Cipi ◽  
Shan Ma ◽  
Brian P. Hafler ◽  
Rahul N. Kanadia ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Mammalian Target Of Rapamycin ◽  
The Elderly ◽  
Geographic Atrophy ◽  
Age Related Macular Degeneration ◽  
Photoreceptor Outer Segment ◽  
Metabolic Adaptations ◽  
Age Related ◽  
Disease Stages

Age-related macular degeneration (AMD) is the leading cause of blindness in the elderly. While the histopathology of the different disease stages is well characterized, the cause underlying the progression, from the early drusen stage to the advanced macular degeneration stage that leads to blindness, remains unknown. Here, we show that photoreceptors (PRs) of diseased individuals display increased expression of two key glycolytic genes, suggestive of a glucose shortage during disease. Mimicking aspects of this metabolic profile in PRs of wild-type mice by activation of the mammalian target of rapamycin complex 1 (mTORC1) caused early drusen-like pathologies, as well as advanced AMD-like pathologies. Mice with activated mTORC1 in PRs also displayed other early disease features, such as a delay in photoreceptor outer segment (POS) clearance and accumulation of lipofuscin in the retinal-pigmented epithelium (RPE) and of lipoproteins at the Bruch’s membrane (BrM), as well as changes in complement accumulation. Interestingly, formation of drusen-like deposits was dependent on activation of mTORC1 in cones. Both major types of advanced AMD pathologies, including geographic atrophy (GA) and neovascular pathologies, were also seen. Finally, activated mTORC1 in PRs resulted in a threefold reduction in di-docosahexaenoic acid (DHA)–containing phospholipid species. Feeding mice a DHA-enriched diet alleviated most pathologies. The data recapitulate many aspects of the human disease, suggesting that metabolic adaptations in photoreceptors could contribute to disease progression in AMD. Identifying the changes downstream of mTORC1 that lead to advanced pathologies in mouse might present new opportunities to study the role of PRs in AMD pathogenesis.

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