Eye Vision Test
Test can be performed with or without glasses.
In order for the test to be performed correctly, allow the following distance between subject and screen:
- • 7 feet from a 20” screen;
- • 5 feet from a 17” screen;
- • 3 feet from a 12” screen;
- • 2 feet from a 13” screen.
Cover left eye with your left hand, ensure to avoid applying pressure to the eyelid. Read the letters on the screen beginning at the top. Once completed, repeat with the right eye.
If you were able to read as easily with both the left and right eye, chances are you have a strong central visual acuity. If you are unable to read all the lines, you definitely have vision problems. A comprehensive exam, performed by an optometrist is required.
Colour Vision Test
A colour vision deficiency is also innate in most cases with many visual impairments. Men are more commonly affected than women.
Colour vision deficiency or colour blindness? The two terms are often used as synonyms. But the hereditary vision problems are by no means equal: Protanomaly or deuteranomaly describes a red or green colour vision deficiency. This means the colours can only be detected when they are particularly saturated and strong.
Colour blindness for different colours is called anopsia. In the case of protanopia or deuteranopia the affected individual is missing the colour receptors for red or green on the retina and the two colours are perceived as bright grey shades. Unfortunately, there are no treatment options available for a colour vision deficiency or colour blindness. However, with tinted lenses the frequently occurring light sensitivity can be alleviated.
Take a look at the image and try to recognise the numbers or letters.
Choose between the possible answers!
I see an 8 : If you are only able to recognise an 8 in the above image, it is possible you suffer from red-green colour blindness. A professional test with an optician or ophthalmologist is recommended!
- I see a 12 : If you are only able to recognise a 12 in the above image, it is possible you suffer from blue-yellow colour blindness. A professional test with an optician or ophthalmologist is recommended!
- I see something else : If you are able to recognise 182 in the above image, your colour perception is probably OK. Repeat the test regularly to check your colour perception.
Take a look at the image and try to recognise the numbers or letters.
Choose between the possible answers!
I see a 3 : If you are able to recognise 3 in the above image, your colour perception is probably OK. Repeat the test regularly to check your colour perception.
- I see something else : If you not able to recognise any number in the above image, it is possible you suffer from red-green colour blindness. A professional test with an optician or ophthalmologist is recommended!
Take a look at the image and try to recognise the numbers or letters.
Choose between the possible answers!
I see a C and an H : If you are able to recognise a C and an H in the above image, your colour perception is probably OK. Repeat the test regularly to check your colour perception.
- I only see a 31 : If you are only able to recognise a 31 in the above image, it is possible you suffer from red-green colour blindness. A professional test with an optician or ophthalmologist is recommended!
The Retina Test
In simple terms, the retina is a projection area on which our environment is depicted. It guides the impulses caused by bursts of light to the brain.
The Amsler vision test is used to examine the retina. With the Amsler grid diseases affecting the centre of the retina can be identified. In the case of macular degeneration, the central visual acuity of an eye is fully or partially lost. As only the centre of the retina is affected, the field of vision at the sides is retained.
Macular degeneration must be treated professionally. If you do not have a good feeling with this vision test, please visit your ophthalmologist.
Test your retina function
The so-called Amsler test can detect dangerous retinal diseases. Test your retina function now!
- Look at the image from 30 cm away. If you need reading spectacles, please wear them. Take the test first with both eyes, then with the right and left eye.
- Answer the following questions:
Do you see the small black square in the middle of the grid?
Look at the square. Do you still recognise the entire grid network?
Are all lines of the grid network parallel and black?
The Field of Vision Test
The field of vision, also called field of view, is what we see when we look directly ahead with our head straight.
It covers everything that is depicted on the retina. Here it does not matter whether the things are sharp – also the environment that one perceives but cannot detect clearly is also included.
Test your field of vision
Individuals who perceive a rapid movement from the corner of the eye turn their head suddenly. This reflex allows us to respond to dangers in good time. Test how far your field of vision reaches now!
- Important: Do not wear spectacles for this test! Take a pen in your right hand and hold it at arm’s length in front of your face.
- Cover the left eye with your free hand. Look straight ahead and maintain this viewing direction, while you slowly move the pen to the right in a crescent shape with the extended arm.
- Stop at the point at which your pen disappears from your field of vision. If you have a normal field of vision, your arm should be at a 90° angle to the starting point of the movement.
- Now guide the extended arm with the same movement to the other side of your body until the pen disappears from your field of vision. The angle should now be slightly smaller, roughly 60°, because the nose limits the field of vision.
Improve your vision at a monitor
A few simple measures and a special pair of computer or near comfort spectacles guarantee improved visual comfort when working at the monitor. The settings of your monitor also play a role here.
Configure your monitor for fatigue-free, better vision at work or in your spare time!
- Do you see 9 different, clearly distinguished and varying grey areas? The left field should be completely black, the right completely white.
- If this is not the case, change the brightness and contrast until you obtain the desired result.
The tests that we propose do not have a medical value and we remind you that only your optometrist can give a proper diagnostic.
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