“…11,12 Other studies, however, have shown changes in PSD after the cataract extraction on full-threshold white-on-white perimetry in patients with glaucomatous VF loss. [13][14][15][16][17] Recently the AGIS study 18 reported changes in global indices of standard threshold perimetry after cataract extraction. As expected, overall, MD improved after cataract extraction, but PSD, an index that is supposed to be resilient to factors such as cataract, also showed deterioration.…”