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.
IRFs derived from the TWN ERG with focal (39.3° diameter) stimuli measured in Maxwellian view. Data are for a representative observer. The IRFs are shown for 250-ms duration as a function of Michelson stimulus contrast and adaptation level spanning photopic to mesopic illuminations (Brisbane laboratory).
