That examination, I don't know what it is in English, the examination of the field of view, is harder work than anything I know, though the test takes only a couple of minutes per eye. You must concentrate really hard and you are very tense: do I really see all those microscopic flashes of light? Even the woman who used that machine admitted that if you had to do such "work" a few hours every day, you would very soon be in a mental hospital.

Luckily the next test is again one year away. And now I rest.