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.
Upper panel: Total retinal ablation area treated with laser for PDR. y axis: Retinal surface ablation area (mm2). x axis: Grade of PDR; mild—1, moderate—2, and severe—3. Lower panel: Total retinal ablation area treated to produce complete regression of PDR disease. y axis: Retinal surface ablation area (mm2). x axis: Grade of PDR; mild—1, moderate—2, and severe—3.
