This is usually unilateral ocurring in people in their 20's or 30's, particularly females. The patient has a suddden onset of decreased vision associated with light flashes. There may be a mild APD and mild vitritis. There will be multiple white dots involving the posterior pole and mid-periophey, with teh macula spared and optic disc swelling. Sevceral weeks later the dots and disk swelling fades and central vision returns to normal with remaining foveal granularity and possibly light flashes continuing. 10% may relapse.