3 results on '"Iliev ME"'
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2. Comparative Study Between the SORS and Dynamic Strategy Visual Field Testing Methods on Glaucomatous and Healthy Subjects.
- Author
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Kucur ŞS, Häckel S, Stapelfeldt J, Odermatt J, Iliev ME, Abegg M, Sznitman R, and Höhn R
- Subjects
- Healthy Volunteers, Humans, Prospective Studies, Reproducibility of Results, Switzerland, Visual Fields, Glaucoma diagnosis, Visual Field Tests
- Abstract
Purpose: To clinically validate the noninferiority of the sequentially optimized reconstruction strategy (SORS) when compared to the dynamic strategy (DS)., Methods: SORS is a novel perimetry testing strategy that evaluates a subset of test locations of a visual field (VF) test pattern and estimates the untested locations by linear approximation. When testing fewer locations, SORS has been shown in computer simulations to bring improvements in speed over conventional perimetry tests, while maintaining acquisition at high-quality acquisition. To validate SORS, a prospective clinical study was conducted at the Department of Ophthalmology of Bern University Hospital, over 12 months. Eighty-three subjects (32 healthy and 51 glaucoma patients with early to moderate visual field loss) of 114 participants were included in the study. The subjects underwent perimetry tests on an Octopus 900 (Haag-Streit, Köniz, Switzerland) using the G pattern with both DS and SORS. The acquired sensitivity thresholds (ST) by both tests were analyzed and compared., Results: DS-acquired VFs were used as a reference. High correlations between individual STs ( r ≥ 0 . 74), as well as between mean defect values ( r ≥ 0 . 88) given by DS and SORS were obtained. The mean absolute error of SORS was under 3 dB with a 70% reduction in acquisition time. SORS overestimated healthy VFs while slightly underestimating glaucomatous VFs. Qualitatively, SORS acquisition yielded VF with detectable defect patterns, albeit some isolated and small defects were occasionally missed., Conclusions: This clinical study showed that for healthy and glaucomatous patients, SORS-acquired VFs sufficiently correlated with the DS-acquired VFs with up to 70% reduction in acquisition time., Translational Relevance: This clinical study suggests that the novel perimetry strategy SORS could be used in routine clinical practice with comparable utility to the current standard DS, whereby providing a shorter and more comfortable perimetry experience., Competing Interests: Disclosure: Ş.S. Kucur, None; S. Häckel, None; J. Stapelfeldt, None; J. Odermatt, None; M.E. Iliev, None; M. Abegg, None; R. Sznitman, None; R. Höhn, None, (Copyright 2020 The Authors.)
- Published
- 2020
- Full Text
- View/download PDF
3. Retrograde Maculopathy in Patients With Glaucoma.
- Author
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Brazerol J, Iliev ME, Höhn R, Fränkl S, Grabe H, and Abegg M
- Subjects
- Aged, Aged, 80 and over, Cross-Sectional Studies, Exfoliation Syndrome diagnosis, Exfoliation Syndrome physiopathology, Female, Glaucoma, Open-Angle diagnosis, Glaucoma, Open-Angle physiopathology, Humans, Intraocular Pressure physiology, Macular Edema diagnosis, Male, Middle Aged, Optic Disk pathology, Retina pathology, Retrospective Studies, Tomography, Optical Coherence methods, Visual Acuity physiology, Visual Field Tests, Exfoliation Syndrome complications, Glaucoma, Open-Angle complications, Macular Edema etiology, Nerve Fibers pathology, Retinal Ganglion Cells pathology
- Abstract
Purpose: Macular optical coherence tomography (OCT) analysis can be used for quantitative measures of optic nerve atrophy at a location far from the optic nerve head. This recently led to the finding of microcystic macular edema (MME), that is vacuolar inclusions in the macular inner nuclear layer, in some glaucoma patients. The involvement of individual retinal layers is yet unclear in glaucoma. In this study we systematically investigated glaucoma-induced changes in macular layers to evaluate whether glaucoma-associated damage extends beyond the macular ganglion cell layer., Patients and Methods: We included 218 consecutive patients and 282 eyes with confirmed primary open-angle glaucoma or pseudoexfoliation glaucoma, and macular OCT in a cross-sectional observational study. Eyes were screened for presence of MME. Thickness of individual retinal layers was determined using a semiautomatic segmentation algorithm. Peripapillary nerve fiber layer thickness and mean defect in visual field testing were extracted from OCT and medical records, respectively. Results were compared with a small group of eyes with no apparent glaucoma., Results: We found MME in 5 eyes from 5 primary open-angle glaucoma patients and 3 eyes of 3 pseudoexfoliation glaucoma patients (2.8%). MME was confined to the inner nuclear layer in a perifoveal ring and was associated with thinning of the ganglion cell layer and thickening of the macular inner nuclear layer. Glaucoma eyes without MME showed a significant inverse correlation of inner nuclear layer thickness with glaucoma severity., Conclusions: Glaucomatous damage leads to a gradual thickening of the inner nuclear layer, which leads to MME in more severe glaucoma cases. These changes, along with nerve fiber loss and ganglion cell loss, may be summarized as glaucoma-associated retrograde maculopathy.
- Published
- 2017
- Full Text
- View/download PDF
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