The performance of the Humphrey field analyzer (HFA) 24-2 SITA-standard and frequency-doubling technology Matrix 24-2 tests between genders were compared with Mann-Whitney U-test. Visual field test reliability indices, test duration, global indices (mean deviation, and pattern standard deviation ) were compared between the 2 tests using the Wilcoxon signed-rank test and paired t-test. This prospective study included 55 healthy children without ocular or systemic disorders who underwent both SAP and frequency doubling technology (FDT) perimetry visual field testing. The aim of this study was to compare the visual field test results in healthy children obtained via the Humphrey matrix 24-2 threshold program and standard automated perimetry (SAP) using the Swedish interactive threshold algorithm (SITA)-Standard 24-2 test. Kocabeyoglu, Sibel Uzun, Salih Mocan, Mehmet Cem Bozkurt, Banu Irkec, Murat Orhan, Mehmet on behalf of the American Academy of Neurology.Ĭomparison of visual field test results obtained through Humphrey matrix frequency doubling technology perimetry versus standard automated perimetry in healthy children. Our findings underscore a critical need for future studies to measure the effects of vision restoration approaches on perimetry in larger cohorts of patients. In adults with chronic cortical visual impairment, the blind field border appears to have enhanced plastic potential, which can be recruited by gaze-controlled visual discrimination training to expand the visible field. Finally, although discrimination performance improved at all trained locations, changes in Humphrey sensitivity occurred both within trained regions and beyond, extending over a larger area along the blind field border. Worsening was minimal in trained patients. Untrained patients counterbalanced their improvements with worsening of sensitivity over âˆ❉ degrees 2 of their visual field. Improvement was not affected by patient age, time since lesion, size of initial deficit, or training type, but was proportional to the amount of training performed. Trained patients recovered âˆ❁08 degrees 2 of vision on average, while untrained patients spontaneously improved over an area of âˆ❁6 degrees 2. All pretraining and posttraining discrimination performance and Humphrey fields were collected with online eye tracking, ensuring gaze-contingent stimulus presentation. Trained patients practiced direction discrimination, orientation discrimination, or both, at nonoverlapping, blind field locations. ![]() ![]() 24-2 and 10-2 Humphrey visual fields were analyzed for 17 chronic cortically blind stroke patients prior to and following visual discrimination training, as well as in 5 untrained, cortically blind controls. To assess if visual discrimination training improves performance on visual perimetry tests in chronic stroke patients with visual cortex involvement. Visual discrimination training improves Humphrey perimetry in chronic cortically induced blindness. Keywords: visual fields, virtual reality glasses, perimetry, visual fields software, smartphone The results were compared with those obtained from the same patients using the Humphrey perimeter.Results: High correlation coefficient (r=0.808, P<0.0001 was found between the virtual reality visual field test and the Humphrey perimeter visual field.Conclusion: Visual field examination results using virtual reality glasses have a high correlation with the Humphrey perimeter allowing the method to be suitable for probable clinical use. Visual field examination method using virtual reality glasses compared with the Humphrey perimeterĭirectory of Open Access Journals (Sweden)įull Text Available Stylianos Tsapakis, Dimitrios Papaconstantinou, Andreas Diagourtas, Konstantinos Droutsas, Konstantinos Andreanos, Marilita M Moschos, Dimitrios Brouzas 1st Department of Ophthalmology, National and Kapodistrian University of Athens, Athens, Greece Purpose: To present a visual field examination method using virtual reality glasses and evaluate the reliability of the method by comparing the results with those of the Humphrey perimeter.Materials and methods: Virtual reality glasses, a smartphone with a 6 inch display, and software that implements a fast-threshold 3 dB step staircase algorithm for the central 24° of visual field (52 points were used to test 20 eyes of 10 patients, who were tested in a random and consecutive order as they appeared in our glaucoma department.
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