We believe that weekly exposure to moderate sun or just being outdoor ( avoiding the peak hours ) for a period of about 15 hours or more could be very beneficial in the cases of macular degeneration, myopia, etc.

The more you receive (potential) nocive (including cancigenerous) light ( as from fluorescent lamps ) or other nocive stimulus the more you should try to receive the ideal exposure to sun or receive natural sunlight in your eyes (because of its healing capacities).

When it does not cause danger take you prescription glasses of while outdoors ( sun swing ) or expose your closed eyes ( without glasses or contact lenses ) to the sun.

When you read, try to read close to a window or even better outdoors ( under a veranda or marquisa in the case of very intense sun ).

Even watching a TV or computer screen try to receive some natural light in the room ( that does not cause glare ).

In the case you cannot spend the ideal amount of time outdoors, consider more intense ( and for some controversial ) excercises that are about looking repeatadly past a source of light like a lamp ( sun swing, waving your head before a light source ).
Make sure you take the precautions especially the time to adapt.

The cells in the retinas of your eyes will not divide and regenerate without a small amount of ultraviolet light.
And so full-spectrum light reduces the risk of retinal degeneration, the leading cause of blindness among the elderly.

Dr. Bates believed that the eyes were benefited by exposure to sunlight.

He stated that "persons with normal sight can look directly at the sun ( after training and adaption ), or at the strongest artificial light, without injury or discomfort", and gave several examples of patients' vision purportedly improving after sungazing —this is at variance with the well-known risk of eye damage which can result from looking directly in the sun.

Bates cautioned that, just as one should not attempt to run a marathon without training, one should not immediately look directly at the sun, but he suggested that it could be worked up to.

He acknowledged that looking at the sun could have ill effects, but characterized them as being "always temporary" and in fact the effects of strain in response to sunlight.
He wrote that he had cured people who believed that the sun had caused them permanent eye damage.
In his magazine, Bates later suggested exposing only the white part of the eyeball to direct sunlight, and only for seconds at a time, after allowing the sun to shine on closed eyelids for a longer period.

Eventually Bates concluded that the practice of sunning should only be done with closed eyelids.
Posthumous publications of Bates' book omitted mention of the supposed benefits from direct sunlight shining on open eyes.

MHIP : We think that many of Bates techniques have the potential to help persons with severe problems.
However we insist we do not approve his most controversial techniques as such.

However recent findings seem to prove the many and extraordinary health effect of outdoors, sun and sunshine ( that Dr Bates tried to explore already more than one century ago ).

We think that normal exposure by just by being outdoors is the safest way to receive at least some of the benefits of the sun
( for the eyes and health in general ). ( see also sun and myopia )

We think that doing exercises outdoors AND in the sun bring even more positive health effects ( also against cancer )
( kite surfers and water sporters should be more careful, especially regarding looking too close to the sun for too long a time ).

Dr Bates promotes technique as swinging the head before a lamp ( and eventually the sun ) ( avoiding the eyes to focus on the source ).

It is basically moving your head or body and passing the lamp ( or mild sun ) over and again with your eyes.
Making sure you do not stare in a too strong ( adaption ) source of light.
Make sure you take the time ( days or months ) to adapt if you use a stronger source or much more intense sunlight.

We think that people with severe eye conditions should have a look at information about such exercises but should do sufficient research or consult specialists ( because there are some serious risks too when considerig the more controversial techniques of Dr Bates as the ones that have to do with sun ).