Clinical Applications of the Photopic Negative Response to Optic Nerve and Retinal Diseases
Figure 6
(a) Representative waveforms of the full-field cone electroretinogram recorded from a normal subject and a patient with advanced glaucoma. (b) PhNR amplitudes were plotted for normal subjects and patients with early , intermediate , and advanced glaucoma . PhNR: photopic negative response (reproduced with permission from [27]).