Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Box plots of grand average PERG amplitude (A) and phase (B) in different subject groups (NC, normal controls, n=16; GS, glaucoma suspects, n=42; EMG, early manifest glaucoma, n=22). For each group, measurements of the two eyes were averaged.
