Test the retina function
The so-called Amsler test can reveal dangerous retinal diseases. Test your retina function now.
Look at the picture from a distance of 30 cm. Wear your reading glasses if you normally use them. Perform the test first with both eyes, then with the right and left eye separately.
Answer the following questions:
Do you see the small, black square in the middle of the grid?
Focus on the square. Do you still see the entire grid?
Are all the lines parallel and black?
If you answered one or more questions with no, you should see your ophthalmologist for a check-up immediately. It may be an indication of an abnormal change of the retina. Important: Repeat the test from time to time.