scholarly journals Three-dimensional computer-automated threshold Amsler grid test

2004 ◽  
Vol 9 (1) ◽  
pp. 149 ◽  
Author(s):  
Wolfgang Fink ◽  
Alfredo A. Sadun
Keyword(s):  
Three Dimensional ◽  
Amsler Grid ◽  
Grid Test

scholarly journals Amsler grid test for detection of advanced glaucoma in Ethiopia

PLoS ONE ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. e0230017
Author(s):  
Girum W. Gessesse ◽  
Lemlem Tamrat ◽  
Karim F. Damji
Keyword(s):  
Advanced Glaucoma ◽  
Amsler Grid ◽  
Grid Test

scholarly journals Distinguishing wet from dry age-related macular degeneration using three-dimensional computer-automated threshold Amsler grid testing

2011 ◽  
Vol 95 (10) ◽  
pp. 1419-1423 ◽  
Author(s):  
C. D. Robison ◽  
R. V. Jivrajka ◽  
S. R. Bababeygy ◽  
W. Fink ◽  
A. A. Sadun ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Three Dimensional ◽  
Age Related Macular Degeneration ◽  
Age Related ◽  
Amsler Grid

Efficacy of the Amsler Grid Test in Evaluating Glaucomatous Central Visual Field Defects

Ophthalmology ◽  
2016 ◽  
Vol 123 (4) ◽  
pp. 737-743 ◽  
Author(s):  
Daniel Su ◽  
Andrew Greenberg ◽  
Joseph L. Simonson ◽  
Christopher C. Teng ◽  
Jeffrey M. Liebmann ◽  
...  
Keyword(s):  
Visual Field ◽  
Visual Field Defects ◽  
Central Visual Field ◽  
Amsler Grid ◽  
Field Defects ◽  
Grid Test

scholarly journals Effectiveness of measuring the central field with the Berkeley field test

2014 ◽  
Vol 6 (2) ◽  
pp. 170-176
Author(s):  
Sanjeeb K Mishra ◽  
Gauri S Shrestha ◽  
Hiral Korani
Keyword(s):  
Visual Field ◽  
Field Test ◽  
Predictive Value ◽  
Scoring System ◽  
Central Field ◽  
Central Visual Field ◽  
Near Vision ◽  
Amsler Grid ◽  
Sensitivity Specificity ◽  
Grid Test

Introduction: There are several limitations of the Amsler chart as a screening tool due to its low sensitivity and high false-negative results. The Berkeley central visual field test (BCFT), which is a simple power-point presentation of a 50-point scoring system for the central 10-degree of the visual field, was devised as an alternative to the Amsler chart.Objectives: To compare the efficacy of measuring the central visual field using the Berkeley central field test (BCFT) and the Amsler grid test.Materials and methods: In a comparative and validity study, 30 subjects with maculopathy and 35 controls were recruited. The maculopathy subjects with the best corrected visual acuity of 20/200 or better and 2.5M for distant and near vision respectively, were included. All the subjects under went a complete eye examination where visual assessment was done using the distant and near vision Log MAR Chart. The subjects were assessed with the Amsler chart-II at a distance of 30 cm. The BCFT was used as a 50- point scoring system. The effectiveness of BCFT was compared with that of the Amsler grid regarding the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV).  Results: Out of 65 subjects, 30 subjects had maculopathy and 35 were normal. The mean age of the 65 subjects was 49.8±9.1 years. Of the 30 subjects with maculopathy, the majority (54%) had age- related macular degeneration. The sensitivity, specificity, PPV and NPV of the Amsler grid test were found to be 80%, 100%, 100% and 87%, respectively, whereas those of the BCFT were 71%, 99%, 98% and 82% (p=0.37). Conclusion: The BCFT test was as good as the Amsler grid test at detecting the presence of maculopathy.DOI: http://dx.doi.org/10.3126/nepjoph.v6i2.11701Nepal J Ophthalmol 2014; 6 (12): 170-176 

The Amsler Grid Test in Radiotherapy

Radiology ◽  
1976 ◽  
Vol 118 (2) ◽  
pp. 468-469
Author(s):  
J. Lawton Smith
Keyword(s):  
Amsler Grid ◽  
Grid Test

Central perpendicular line in macular spectral-domain optical coherence tomography in five eyes

2019 ◽  
Vol 30 (2) ◽  
pp. NP16-NP22
Author(s):  
María Carmen Guixeres Esteve ◽  
Laurence Postelmans
Keyword(s):  
Optical Coherence Tomography ◽  
Visual Acuity ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Perpendicular Line ◽  
Corrected Visual Acuity ◽  
Amsler Grid ◽  
Interdigitation Zone ◽  
Best Corrected Visual Acuity ◽  
Grid Test

Purpose: The aim of this study is to report a rare spectral-domain optical coherence tomography finding in the macula. Methods: This is a descriptive consecutive case series. Patients diagnosed with hyperreflective central perpendicular line in the macular spectral-domain optical coherence tomography were included. Best-corrected visual acuity assessment, standard Amsler grid test, biomicroscopic examination and macular spectral-domain optical coherence tomography were performed. Results: We examined three men and one woman, aged 56 to 91 years (average age: 75.25 years). Spectral-domain optical coherence tomography showed a hyperreflective central perpendicular line in five eyes accompanied by vitreofoveal adhesion in all of them. In two eyes, we observed a lifting of the ellipsoid zone, and in one eye the external limiting membrane was also pulled. In one eye, a subtle lifting of the interdigitation zone was revealed. In another eye, we also found a triangular foveolar detachment of the interdigitation zone. Snellen’s best-corrected visual acuity ranged from 0.2 to −0.1 logMAR (average of 0.006 logMAR). Amsler grid test was unremarkable in four eyes and metamorphopsia was detected in one eye. One eye developed a full-thickness macular hole several weeks after the phacoemulsification cataract surgery. Conclusion: The presence of a central perpendicular line can be revealed by the macular spectral-domain optical coherence tomography. We hypothesize that this finding could be considered as a sign of vitreomacular traction. In our patients, best-corrected visual acuity was only mildly reduced, and Amsler grid test was affected in only one eye.

scholarly journals Recent Advances of Computerized Graphical Methods for the Detection and Progress Assessment of Visual Distortion Caused by Macular Disorders

Vision ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 25
Author(s):  
Navid Mohaghegh ◽  
Ebrahim Ghafar-Zadeh ◽  
Sebastian Magierowski
Keyword(s):  
Three Dimensional ◽  
Home Monitoring ◽  
Diagnostic Methods ◽  
Age Related Macular Degeneration ◽  
Graphical Methods ◽  
Graphical Interface ◽  
Recent Advances ◽  
Age Related ◽  
Amsler Grid ◽  
Significant Attention

Recent advances of computerized graphical methods have received significant attention for detection and home monitoring of various visual distortions caused by macular disorders such as macular edema, central serous chorioretinopathy, and age-related macular degeneration. After a brief review of macular disorders and their conventional diagnostic methods, this paper reviews such graphical interface methods including computerized Amsler Grid, Preferential Hyperacuity Perimeter, and Three-dimensional Computer-automated Threshold Amsler Grid. Thereafter, the challenges of these computerized methods for accurate and rapid detection of macular disorders are discussed. The early detection and progress assessment of macular disorders can significantly enhance the required clinical procedure for the diagnosis and treatment of macular disorders.

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