understanding basic medical checks part endless

To whom it concern, please understand layman Otis is trying to look like
an eyecareprofessional.

However it's the performance of a quack and charlatan.

By showing you some instruments he is trying to convince you he has some
knowledge in this field , but please keep in mind he doesn't understand
a single bit in how to use these instruments and more important he
never use them himself due to the fact he is a layman in the field of
eyecare...................

Jan (normally Dutch spoken)