What is an Amsler Test?

The Amsler test is a simple and widely used method for checking the central visual field. The test consists of a grid with a central point that the patient focuses on. While viewing this point, it can be determined whether lines appear distorted, are missing, or fade.

These abnormalities may indicate problems in the macula, the central part of the retina responsible for sharp vision.

What is the Amsler test used for?

The test is mainly used for detecting and monitoring:

  • Age-related macular degeneration (AMD)
  • Macular edema
  • Other central retinal conditions

Because the test is quick and easy to perform, it is often used as a first screening tool.

How does the test work?

The patient covers one eye and looks with the other eye at the central point of the grid. Then you are asked whether:

  • Do the lines stay straight?
  • Are there any missing squares?
  • Are any parts of the grid distorted?

Abnormalities can be recorded and followed up immediately.

Why are there different Amsler charts?

While the classic Amsler test often consists of a single grid, there are also more extensive variants with multiple plates. These include, for example:

  • Different contrasts
  • Additional markings
  • Variants that make specific abnormalities more visible

This allows subtler changes in the visual field to be detected.

Amsler test in practice

In a clinical setting, the Amsler test is often used as part of a broader eye examination. By regularly testing, changes in vision can be detected early.

For professionals who want to perform a more extensive assessment, there are also variants available with multiple test plates and documentation options.

Order here the Amsler test with 7 plates for professional use (in stock): https://smelltest.eu/en/product/amsler-grid-chart-set-expanded/

We also have a Hardy Rand Rittler (color vision test) combined with the Amsler test available: https://smelltest.eu/en/product/hrramsler-combination-color-test/

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