Visual field plots of a patient with hyperprolactinaemia.
The visual fields shown here were plotted using a Goldmann perimeter under identical conditions, with a 0.25mm2 object at two different light intensities: l ,000 apostilb (I4) and l00 apostilb (I2). The black periphery indicates a normal visual field for comparison. An almost complete bitemporal hemianopia (pretherapy) which had almost disappeared after one year of treatment with bromocriptine, returned on cessation of therapy and began to subside after reinstitution of bromocriptine.
