Please see the latest thread 'RP Explained', another superbly valuable
article by Dr.Bates. It will give you a simple but very thorough
explanation of the disease, without a large degree of medical
terminology so laymen and doctors alike can understand it.

Dr Bates was a prominent doctor back in the 1920s with a very immense
and vast knowledge on the subject of eye diseases as a result of many
decades of experience with patients. He sought to uncover the truths
and superstitions in the field of ophthalmology, and throw light on
more stranger phenomenon - such as the mind's value in the prevention
of bodily pain, and how memory and imagination can be used with
miraculous efficacy to cure even the most obstinate of organic defects
- including retinitis pigmentosa.

He begins with a simple description of the condition - symptoms,
manifestation,  available treatments, and so forth. Further onwards he
describes cases in which retinitinis pigmentosa, contrary to the
belief held by the doctors here on sci.med.vision, has been both
temporarily relieved and completely cured. He then gives various
suggestions through which a patients of all ages suffering from the
disease can be helped or cured.

Read the article and you'll see!