Fig. 2. Large prolactinoma. Original vision in the right eye (RE) was 8/200, left eye (LE) 1/200, with serum prolactin of 26,000 ng/ml and galactorrhea. Four months of bromocriptine reduced prolactin to 661 ng/ml, vision improved to RE 20/40, LE 20/50. At 3 years, vision was as follows: RE 20/30, LE 20/20; prolactin was 25.9 ng/ml. Enhanced magnetic resonance imaging. Sagittal (A) and coronal (C) images at diagnosis. Sagittal (B) and coronal (D) images at 2-year follow-up, showing dramatic shrinkage of the mass.