Fig. 2

Humphrey visual field 24 − 2 testing. Legend- a Humphrey visual field 24 − 2 testing of the right eye showing severely constricted visual field with an island of macular sparing. The test is reliable enough for interpretation with an acceptable number of false positives (0 %) and false negatives (0 %). b Humphrey visual field 24-2 testing of the left eye showing depressed inferonasal vision with preserved peripheral vision. The defect is altudinal as it largely respects the horizontal meridian. The test is reliable enough for interpretation with an acceptable number of false positives (0%) and false negatives (2%).