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.
Mean (SD) visual acuity and letter contrast sensitivity of subjects' amblyopic eye (filled circles) and fellow eye (open circles). NB Error bars show variation in scores at the specified points within the trial but do not indicate changes attributable to interventions. The acuity scale has been inverted in order that improvements in visual acuity (VA) and contrast sensitivity (CS) each correspond to vertical increments on the ordinate.
