Optics - the physics behind it

An object of size G is viewed at a working distance A₀ and appears at a visual angle α₀. With the optical system it appears at a visual angle α at distance A.

For the magnification V then applies:

Consequence for the practice

The brain of the practitioner is fooled during the treatment with loupe glasses.
This expects the things under consideration at a distance A

For practical application, this means that you must learn to work with loupe glasses.

This is especially true for eye-hand coordination. If you want to guide your hand to the object you are looking at while looking through the magnifying glasses, this causes difficulties at the beginning because the object is assumed to be closer by the brain.

At 6x magnification, practice is also needed for eye-head coordination. This means that the practitioner must practise moving the head appropriately so that he/she first finds the object he/she wants to look at.

Therefore, take more time at the beginning and please do not try to master the tightly calculated daily practice routine with magnifying glasses from now on. This is going wrong.

However, as with most good things in life, it takes practice to become a master. If you have never worked with magnifying glasses before, you should only start with 2.5x magnification.