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.
Optic disc change by treatment assignment in the Collaborative Initial Glaucoma Treatment Study (CIGTS) five-year optic disc study
| Treatment Group | Disc Change Classification | Total | ||
|---|---|---|---|---|
| Reversal of Cupping | No Change | Glaucomatous Progression | ||
| Medicine | 2 (1%) | 165 (89%) | 18 (10%) | 185 |
| Surgery | 21 (13%) | 138 (85%) | 4 (3%) | 163 |
| Total | 23 (7%) | 303 (87%) | 22 (6%) | 348 |
P<0.001, chi-square
