Amsler grid, as seen by a person with normal vision
Purpose
Used to detect vision problems resulting from damage to the macula or the optic nerve[1]
Test of
Central visual field
The Amsler grid, used since 1945, is a grid of horizontal and vertical lines used to monitor a person's central visual field. The grid was developed by Marc Amsler, a Swiss ophthalmologist. It is a diagnostic tool that aids in the detection of visual disturbances caused by changes in the retina, particularly the macula (e.g. macular degeneration, Epiretinal membrane), as well as the optic nerve and the visual pathway to the brain. Amsler grid usually help detecting defects in central 20 degrees of the visual field.[2]
In the test, the person looks with each eye separately at the small dot in the center of the grid. Patients with macular disease may see wavy lines or some lines may be missing.
Amsler grids are supplied by ophthalmologists, optometrists or from web sites, and may be used to test one's vision at home.
The original Amsler grid was black and white. A color version with a blue and yellow grid is more sensitive and can be used to test for a wide variety of visual pathway abnormalities, including those associated with the retina, the optic nerve, and the pituitary gland.
^"Amsler Grid: A Test for Macular Degeneration and Other Vision Problems". All About Vision.
^Richard C. Allen (2017-01-09). "Amsler Grid Testing".
The Amslergrid, used since 1945, is a grid of horizontal and vertical lines used to monitor a person's central visual field. The grid was developed by...
Amsler is a surname. Notable people with the surname include: Marc Amsler (1891–1968), Swiss ophthalmologist AmslergridAmsler sign, a medical sign Margaret...
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patient's micropsia. The Amslergrid test can be used to diagnose macular degeneration. For this test, patients are asked to look at a grid, and distortions or...
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manual equipment can be used such as in the tangent screen test or the Amslergrid. When dedicated machinery is used it is called a perimeter. The exam...
visible as bowing and blurring when looking at lines on chart paper (or an Amslergrid) within the macular area, or central 1.0 degree of visual arc. Usually...
Robson performed either at home or by an eye specialist. When viewing an Amslergrid, some straight lines appear wavy and some patches appear blank When viewing...
edge of the wall, road, etc.) that suddenly appear curved (positive Amslergrid test) central visual loss Find all the retinal breaks Seal all the retinal...
manual equipment can be used such as in the tangent screen test or the Amslergrid. When dedicated machinery is used it is called a perimeter. Visual perception...
social interaction or institutional structure. Floater Scotomization Amslergrid Horizontal eccentricity Visual field test Binasal hemianopsia Bitemporal...
ophthalmology. Amsler was professor and chief of the Zurich Eye Clinic until 1961. His successor was Rudolf Witmer. He is best known for the Amslergrid test....
background. Many lines of an Amslergrid would be faded or invisible to the patient. The area of invisibility on the Amslergrid spreads with time. Symptoms...
announces a method of orally administering the antibiotic penicillin. The Amslergrid is introduced for monitoring of the central visual field. High-altitude...
optical coherence tomography were normal. Amslergrid test results were highly variable, and the locations of grid abnormalities and RPE defects were inconsistent...
Charles Martin Amsler (October 26, 1942 – January 4, 2024) was an American professional football player who was a defensive end in the National Football...
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be recorded. Other tests done and their significance are as follows: Amsler'sgrid test - to locate scotomas on the visual field of the individual Colour...
2008. Grayson, Audrey (September 30, 2014). "Researchers Improve Power Grid Reliability During Hurricanes With NSF Award". UH Cullen College of Engineering...
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