Vision exercises
Ready for a quick check of your vision? Let’s go!
Please note: these tests are no substitute for a medical examination.
If in doubt, please make an appointment with one of our specialists.
Amsler grid test
Screening for retinal problems
How to use the Amsler grid:
Stand about 25 cm from your screen, wearing your usual glasses or contact lenses if necessary.
Test one eye at a time, covering the other without exerting pressure, then fix the center point of the grid.
Normally :
- lines should appear straight,
- intersections must form right angles,
- and all the squares must appear to be the same size.
Red/green test
Myopic or hypermetropic?
How to perform the red/green test: Stand about 2 meters from the screen. Hide one eye, then observe the letters appearing on the two colored backgrounds.
Indicate which color you think is sharpest.Then hide the other eye and repeat the same exercise.
Results:
- If the figures on the red background appear sharper, this suggests myopia. With glasses, this would indicate a need for stronger correction; a hyperopic person would then be over-corrected.
- If the figures on the green background appear sharper, this suggests hyperopia. With glasses, this would indicate a need to increase the correction; a myopic person would then be over-corrected.
Astigmatism test
Test your astigmatism
On the screen, you see four small squares made up of parallel black lines, oriented differently. If some lines appear blurrier or more distorted than others, this may indicate astigmatism.
To perform the test, stand at a normal distance from the screen. First cover the right eye (without pressing), observe the figure with the left eye, then repeat with the other eye.
Make sure your screen’s brightness and contrast are correct. If in doubt, print out the test and hang it facing you, or make an appointment with a vision care professional.
Ishihara test
Color vision
Can you visualize all the numbers?
Procedure:
- Make yourself comfortable, at a distance where you can see the screen effortlessly.
- Keep both eyes open: this test is performed with binocular vision, as in everyday life.
- Look at each circle and try to identify the number inside.
Take your time: if a number seems blurred, hard to distinguish or invisible, it’s important information.
The Center
How to get to the Centre Ophtalmologique de la Broye
10-minute walk from Payerne railway station
A1 freeway, exit 27
Parking at Hôpital Intercantonal de la Broye
(30 minutes free, 2CHF per hour)