Table 2: Types of colour defects using the Ishihara Plates.
| Type of defect | Male (N) | Female (N) |
|---|---|---|
| Mild deutan | 30 | 1 |
| Severe deutan | 47 | 3 |
| Mild protan | 1 | 0 |
| Severe protan | 0 | 0 |
| Total defect | 1 | 0 |
| TOTAL | 79(2.1%) | 4(0.1%) |
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.