Six hundred twenty-one subjects with an applanation pressure of 20 mm Hg or greater in both eyes and a visual acuity of 20/30 or better were examined for glaucomatous field defects by selective perimetry using the 1-2 and 1-4 targets of the Goldmann perimeter. Significant defects included paracentral scotomas, nasal step, and pressure dependent contraction of the isopter. These defects were present in 106 eyes. Only two required the 1-4 target. Eleven required isopter determination with the 1-2. Ninety-three were detected by stationary presentation at 5, 10, and 15 circles. The frequency of field defects increased significantly with age and with applanation pressure level.
Armaly MF. Selective Perimetry for Glaucomatous Defects in Ocular Hypertension. Arch Ophthalmol. 1972;87(5):518-524. doi:10.1001/archopht.1972.01000020520005