Many sources may tell you that there is no treatment for retinitis pigmentosa or that options are very limited, but it is important to remember that the health of your eyes is very much related to the health of the body in general. Making positive lifestyle choices and maintaining a healthful diet can really make a difference.
* Diet: I found great information about how nutrients in food can support eye health here: http://www.naturaleyecare.com/prev-food.asp
* Daily Juicing (preferably all organic) - ginger, garlic, leeks, parsley, beets, cabbage, carrots, celery, spinach, apples, grapes, raspberries, lemon, chlorophyll, wheat grasses (not too much fruit).
* Reduce or eliminate drinking caffeine and sodas, avoid aspartame (labeled diet foods) and man made fats (corn oil and safflower oil, trans fats and hydrogenated vegetable oils including canola oil).
* Eliminate deep fat fried foods
* Avoid monosodium glutanate (MSG) used as a flavor enhancer which is a potential retinal toxin (Inv Oph 1996; 37: 1618-24), and fat blockers like Olestra which impair the absorption of carotenoids (Argus, August 1996;19:18:July 1996;19:22).
* Limit your alcohol consumption to 1 glass of red wine at night. Alcohol interferes with liver functions, reducing protective glutathione levels (Alcohol 1993;10;469-75).
* Eliminate smoking. Smoking among other things produces cyanide, a retinal toxin.
* Work with your doctor to determine how medications for other conditions may effect your eyes.
* Exercise daily - do at least 20 minutes of aerobic exercise daily. Walking and swimming are two excellent forms of exercise.
* Managing your emotional health is very important in maintaining physical health. Take up the practice of meditation, yoga, tai chi, walks in the woods or prayer on a daily basis.
This page has more information on how to deal with retinitis pigmentosa naturally: http://www.naturaleyecare.com/diseases.asp?d_num=12