After being diagnosed with BSCR last year I also discovered an anti-inflammatory diet is strongly suggested. As it turned out I have been consuming an anti-inflammatory diet for decades. It is just one of many good health habits to consider along with good exercise, sleep, weight control, etc., etc., and I don't really think it will change the course, just be supportive. The only real dietary change I have made as a consequence has been to move to use of organic oils (olive, peanut). I don't like the quality/taste of the organics near as much, but did make that switch.
I have had significant positive changes in the past two weeks since starting low dose naltrexone (LDN), having refused my ophthalmologist's recs for high dose prednisone and methotrexate.