Frequency-Doubling Technology Perimetry and Optical Defocus

2003 ◽  
Vol 44 (9) ◽  
pp. 4147 ◽  
Author(s):  
Andrew John Anderson ◽  
Chris A. Johnson
Keyword(s):  
Frequency Doubling ◽  
Frequency Doubling Technology ◽  
Optical Defocus

scholarly journals Glaucomatous Patterns in Frequency Doubling Technology (FDT) Perimetry Data Identified by Unsupervised Machine Learning Classifiers

PLoS ONE ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. e85941 ◽  
Author(s):  
Christopher Bowd ◽  
Robert N. Weinreb ◽  
Madhusudhanan Balasubramanian ◽  
Intae Lee ◽  
Giljin Jang ◽  
...  
Keyword(s):  
Machine Learning ◽  
Frequency Doubling ◽  
Unsupervised Machine Learning ◽  
Machine Learning Classifiers ◽  
Frequency Doubling Technology ◽  
Learning Classifiers

scholarly journals Prevalence of glaucoma in the Australian National Eye Health Survey

2018 ◽  
Vol 103 (2) ◽  
pp. 191-195 ◽  
Author(s):  
Stuart Keel ◽  
Jing Xie ◽  
Joshua Foreman ◽  
Pei Ying Lee ◽  
Mostafa Alwan ◽  
...  
Keyword(s):  
Low Vision ◽  
Visual Fields ◽  
Frequency Doubling ◽  
Population Based ◽  
Fundus Photography ◽  
Indigenous Australians ◽  
Frequency Doubling Technology ◽  
Eye Health ◽  
Low Vision Rehabilitation ◽  
History Of

AimTo estimate the prevalence of glaucoma in Australia.MethodsThis was a population-based study of 3098 non-Indigenous Australians (50–98 years) and 1738 Indigenous Australians (40–92 years) stratified by remoteness. Each participant underwent a standard examination that included visual field assessment, tonometry and non-mydriatic fundus photography. Two fellowship-trained glaucoma specialists independently assessed relevant case notes (past ocular history, best-corrected visual acuity, frequency doubling technology visual fields, Van Herick grade, intraocular pressure and optic disc-centred photographs) and assigned a diagnosis ranked on a scale of certainty: none, possible, probable or definite glaucoma.ResultsA total of 4792 (99.1%, 3062 non-Indigenous and 1730 Indigenous) participants had retinal photographs in at least one eye that were gradable for glaucoma. The weighted prevalence of glaucoma (definite) in non-Indigenous Australians and Indigenous Australians was 1.5% (95% CI 1.0 to 2.2) and 0.6% (95% CI 0.4 to 1.1), respectively. When definite and probable cases of glaucoma were combined, rates were 3.4% (95% CI 2.7 to 4.3) among non-Indigenous and 1.6% (95% CI 1.1 to 2.3) in Indigenous Australians. Only 52.4% of non-Indigenous Australians and 28.0% of Indigenous Australians with glaucoma self-reported a known history of glaucoma.ConclusionWe estimate that 198 923 non-Indigenous Australians aged 50 years and over and 2139 Indigenous Australians aged 40 years and over have glaucoma. Given the high rates of undiagnosed glaucoma coupled with a significant ageing of the Australian population, improvements in case detection and access to low vision rehabilitation services may be required to cope with the growing burden of glaucoma.

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