Of the eyes with central scotomas involving the fovea, 66% used an eccentric preferred retinal locus for fixating the center of the grid. Finally, more than half of the distortion reported in Amsler grids was at the retinal area that corresponded to the scotoma area, not a nonscotoma retinal...
Related to Amsler chart:Amsler grid ThesaurusAntonymsRelated WordsSynonymsLegend: Switch tonew thesaurus Noun1.Amsler grid- a pattern of small boxes that is used for self-monitoring by patients who have age-related macular degeneration grid- a pattern of regularly spaced horizontal and vertical lines...
Black grid on white background design was used in 72%, 11% with white-on-black and other formats in 17%. Instructions about monocular testing, distortion and scotoma detection were described in 96%, 97% and 89% respectively. Frequency of testing was only stated in 24%, of which most ...
CONCLUSION: The scotoma caused by Nd:YAG laser injury is not surrounded by distortion; the hole is produced by the defect of all retinal layers. In contrast, idiopathic macular holes generally produce a pincushion pattern on Amsler grid testing and have no tissue loss....
The interactively deformable grid is based on cubic B-splines to obtain a locally controlled deformation. By simulating metamorphopsia on normal sight volunteers, acquisition of a correction percentage is possible as a result of analyzing the magnitude of the simulated distortion and th...