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.
Baseline cone threshold.
Notes: ANOVA with the Satterthwaite approximation and Tukey–Kramer p-value adjustment was used to compare normal young and old subjects as well as age-matched older normal and AMD subjects. Scatterplot with error bars representing the standard deviation.
Abbreviations: AMD, age-related macular degeneration; ANOVA, analysis of variance.
