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.
Effect of UVA light in vivo on the activity of catalase in guinea pig lens capsule-epithelium. The animals (initially 18 months old) were exposed to UVA light for five months. One unit of catalase activity corresponds to the conversion of 1 gmol of H2O2 per min at room temperature under optimal conditions in the presence of 10 mM H2O2. Results are expressed as means (±s.d. for four experiments. P = 0·01 for the difference between experimental and age-matched control values.
