Results 161 to 170 of about 1,069,408 (197)
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A modified glaucoma staging system based on visual field index
Graefe's Archive for Clinical and Experimental Ophthalmology, 2013To describe a modified glaucoma staging system (Modified GSS) based on the visual field index (VFI) and evaluate the performance of the Modified GSS compared with the Bascom Palmer GSS and Enhanced GSS.A total of 549 eyes of 549 patients were studied retrospectively. The Modified GSS was used to classify the glaucomatous visual field defects into stage
Kazunori, Hirasawa +3 more
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Visual Security Index Combining CNN and Filter for Perceptually Encrypted Light Field Images
ACM Transactions on Multimedia Computing, Communications, and Applications, 2023Visual security index (VSI) represents a quantitative index for the visual security evaluation of perceptually encrypted images. Recently, the research on visual security of encrypted light field (LF) images faces two challenges. One is that the existing perceptually encrypted image databases are often too small, which is easy to cause overfitting in ...
Wenying Wen +4 more
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Perimetric Progression in Open Angle Glaucoma and the Visual Field Index (VFI)
Journal of Glaucoma, 2011To evaluate the changes in the Visual Field Index (VFI) in eyes with perimetric glaucomatous progression, and to compare these against stable glaucoma patients.Consecutive patients with open angle glaucoma with a minimum of 6 reliable visual fields and 2 years of follow-up were identified.
Ang, Ghee Soon +4 more
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Effect of Cataract Opacity Type and Glaucoma Severity on Visual Field Index
Optometry and Vision Science, 2016To determine the effect of cataract opacity type and glaucoma severity on the visual field index (VFI).A total of 152 eyes of 152 patients were analyzed. Patients with glaucoma, previous evaluation with the Swedish Interactive Threshold Algorithm-standard 24-2 VFs, visually significant cataracts, and VFs before surgery were included in this study ...
Hye Jin, Chung +3 more
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Graefe's Archive for Clinical and Experimental Ophthalmology, 1991
Two visual field indices, the mean defect (MD) of Flammer and the mean deviation (MD) of Heijl, have found wide acceptance among perimetrists. We compared these indices in 169 visual fields from normal- and high-tension glaucomatous eyes. Visual field damage in these eyes varied from slight to severe.
A, Funkhouser, F, Fankhauser
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Two visual field indices, the mean defect (MD) of Flammer and the mean deviation (MD) of Heijl, have found wide acceptance among perimetrists. We compared these indices in 169 visual fields from normal- and high-tension glaucomatous eyes. Visual field damage in these eyes varied from slight to severe.
A, Funkhouser, F, Fankhauser
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American Journal of Ophthalmology, 2013
To evaluate the accuracy of the visual field index (VFI) for the Humphrey Visual Field Analyzer in a population of patients with mild to moderate glaucoma.Retrospective cohort study.The study included 42 patients (61 eyes) with at least 11 years of follow-up, and annual automated visual fields (VFs). Patients with mean deviations ≤-20 dB were excluded.
Renée, Talbot +2 more
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To evaluate the accuracy of the visual field index (VFI) for the Humphrey Visual Field Analyzer in a population of patients with mild to moderate glaucoma.Retrospective cohort study.The study included 42 patients (61 eyes) with at least 11 years of follow-up, and annual automated visual fields (VFs). Patients with mean deviations ≤-20 dB were excluded.
Renée, Talbot +2 more
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Progression detection in different stages of glaucoma: mean deviation versus visual field index
Japanese Journal of Ophthalmology, 2011We evaluated and compared visual field index (VFI) and mean deviation (MD) capacity in detecting glaucoma progression at different stages.Participants were classified as having early-, moderate-, or advanced-stage glaucoma. Trend-based approaches (TA) using linear regression analysis of the VFI and MD (VFI TA, MD TA) over patient age were performed ...
Jung Woo, Cho +5 more
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Visual field indexes for version 3.0 of frequency doubling perimetry in patients with glaucoma
American Journal of Ophthalmology, 2003A new version of frequency doubling perimetry was compared to a former version in patients with glaucoma.Prospective observational study.Thirty-two patients with glaucoma were examined twice sequentially in one eye with threshold c-20 of frequency doubling perimetry version 2.6.
Da Wei, Zhang +5 more
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A new diffuse loss index for estimating general glaucomatous visual field depression
Documenta Ophthalmologica, 1991Experience with a number of visual fields has shown that the algorithm used earlier for estimating general depression in glaucomatous visual fields was too conservative. A new, more sophisticated algorithm for calculating diffuse loss has been devised and the results obtained in the evaluation of 20 glaucomatous visual fields were compared with those ...
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A Position Index Formula for Evaluation of Glare Source in the Visual Field
Indoor and Built Environment, 2010The purpose of this study was to propose a formula of the position index for evaluation of the glare source in the whole visual field. The glare sensation was measured to create the formula in binocular and monocular vision. The results showed that there is not a big difference in the level of discomfort glare sensation between the left and right eyes
Wonwoo Kim, null Jeong Tai Kim
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