Sixth International Visual Field Symposium: Santa Margherita Ligure, May 27–31, 1984

Fifth International Visual Field Symposium: Sacramento, October 20–23, 1982

Third International Visual Field Symposium Tokyo, May 3–6, 1978

Single and Multiple Stimulus Static Perimetry in Glaucoma; The Two Phases of Perimetry: The Two Phases of Perimetry

Symposium on Medical Therapy in Glaucoma, Amsterdam, May 15, 1976

Fourth International Visual Field Symposium Bristol, April 13–16,1980

Second European Glaucoma Symposium, Helsinki, May 1984