[Changes in the visual field induced by intrasellar implantation of 90Y in 104 acromegalic patients and their subsequent course].

Changes in the visual field and their correction by intrasellar implantation of 90Y were assesed in 104 acromegalic patients. The results indicated that this form of examination is extremely useful in the evaluation of pituitary adenoma size. The value of intrasellar implantation of radioactive substances was demonstrated by the regression of visual field alterations in a very high percent of cases.