ERIK L. GREVE The 3rd International Visual Field Symposium was held on
the 4th till the 6th of May 1978 in Tokyo for the members and guests of
the International Perimetric Society. The Proceedings of this symposium
follow the general lines of the pro- gramme with some minor alterations.
This symposium was a so-called topic-symposium where selected topics
were introduced by experts in the field. These topics were:
Neuro-ophtha[mo[ogy. 1. Funduscopic correlates of visual field
defects. 2. Visual field defects due to tumors of the sellar region.
Glaucoma. 1. The earliest visual field defects in glaucoma. 2. The
reversibility of glaucomatous visual field defects. Methodology. 1.
Automation. 2. The relation between the position of a lesion in the
fundus and in the visual field. Apart from the introductory papers, free
papers were given on the topics non-topic free papers. and also some
Much attention has been given to the discussion. Most of the discussion
remarks in this Proceedings are the original taped remarks of the
discussion- speakers. We have choosen this form of presentation to take
to the reader the athmosphere of the discussion and to preserve
originality. The chairman of the sessions have presented a summary or
even better an interpretation of the trends in their topics. This
introduction gives a short overview of the main themes of the symposium.