 RaganDE-stereogram movei

You can use it to recover from smartphone presbyopia and asthenopia by stretching the eye muscles.
Since two 3D cameras are used, both the parallel method and the cross method are OK.

It is ideal to alternate between parallel and crossed methods for stretching and training eye muscles.
After watching videos or working on a computer, you can expect to recover from fatigue by watching in parallel.

It is not possible with a large image due to the field of view.
⇒ It works well if you practice on a small screen at first.

Videos that move forward, backward, left and right are especially recommended because they have a high stretching effect.