Abstract
Three cases of Marfan's Syndrome are reviewed. Visual acuity of at least 20/20 and improved binocular function following surgery and orthoptic treatment are presented. One case, presenting with exotropia, achieved constant foveal fusion. The other two cases achieved intermittent foveal fusion. In selected cases, improvement in visual function is an attainable objective, in spite of the other long-term medical problems related to Marfan's Syndrome.