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AMSLER GRID [2 records]

Record 1 2026-02-18

English

Subject field(s)
  • Medical Instruments and Devices
  • Diagnostic Procedures (Medicine)
  • The Eye
CONT

The Amsler grid is essentially a pattern of intersecting lines ... with a black dot in the middle. The central black dot is used for fixation (a place for the eye to stare at). With normal vision, all lines surrounding the black dot will look straight and evenly spaced with no missing or odd looking areas when fixating on the grid's central black dot. When there is disease affecting the macula, as in macular degeneration, the lines can look bent, distorted and/or missing.

Key term(s)
  • Amsler’s grid
  • Amsler’s chart

French

Domaine(s)
  • Instruments et appareillages médicaux
  • Méthodes diagnostiques (Médecine)
  • Oeil
CONT

La grille d'Amsler est simplement constituée de lignes verticales et horizontales. Elle comporte un point en son centre. Il s'agit d'une grille de diagnostic mise au point par un ophtalmologue suisse, Marc Amsler au milieu des années 1940. L'utilisation de cette grille permet de détecter des anomalies au niveau de la macula (partie la plus sensible de la rétine) ou du nerf optique, par exemple.

Spanish

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Record 2 2026-02-18

English

Subject field(s)
  • Diagnostic Procedures (Medicine)
  • The Eye
CONT

The Amsler grid is a chart that is specifically designed to qualitatively analyze the disturbances of visual function that accompany the beginning and evolution of maculopathies. The charts are a series of lined and patterned grids that test the central visual field within 10 degrees of fixation where the plates are held at 1/3 of a meter from the eyes. Each square of the grid subtends [one] degree of visual angle, making the ability to define the location of small defects rather easy. ... The Amsler grid test is quick and easy to administer. The patient is instructed to look at the central dot and asked if, in fact, he/she can see it. If not, the patient may have a central scotoma, and the examiner must query the patient regarding exactly what he/she "does" see. If the patient sees the dot, the examiner asks if the patient is aware that surrounding it are numerous squares. The examiner then asks the patient if any of the squares are distorted, missing, etc.

French

Domaine(s)
  • Méthodes diagnostiques (Médecine)
  • Oeil
CONT

Le test de la grille d'Amsler permet de détecter une DMLA [dégénérescence maculaire liée à l'âge]. En tenant la grille au niveau de l'œil à une distance de lecture confortable et en fixant le point central, les patients atteints voient des lignes déformées, interrompues ou brisées, parfois des zones floues ou aveugles.

Spanish

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