This is a progressive White Light relaxation through the body. Stress affects eyesight adversely, while relaxation is known to have a beneficial effect. The affirmations and visualizations which are presented at alpha are all intended for the improvement of your eyesight and vision.
Whatever you visualize repeatedly, you improve the probability of happening. Therefore, you can imagine what it will be like when your vision is clear again. Keep putting this picture of the future in your consciousness, as the means of creating it.
The second part of this guided experience with relaxing non structured zither music by LaRaaJi is the same as the first, with the addition of eye exercises. These are designed to restore flexibility to the eye muscles which are said to control not only the movement, but also the focus of your eyeballs.