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.
Goldmann visual fields at the age of 49 years. (A and B) Twin A shows central scotomas and more severe constriction of all isopters by approximately 10 degrees compared with twin B. (C and D) Twin B shows less severe peripheral constriction of isopters and a scotoma OD. (I2e, red; I4e, blue; V4e, purple).
Abbreviations: OD, right eye; OS, left eye.
