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.
Number of Concordant Affected and Discordant Sibling Pairs for 10 Thresholds of Refractive Error
| Threshold (D) | Concordant Affected Pairs | Discordant Pairs |
|---|---|---|
| −0.50 | 80 | 348 |
| −1.00 | 35 | 250 |
| −1.50 | 16 | 154 |
| −2.00 | 16 | 116 |
| −2.50 | 9 | 97 |
| +0.50 | 629 | 644 |
| +1.00 | 443 | 598 |
| +1.50 | 240 | 544 |
| +2.00 | 99 | 453 |
| +2.50 | 36 | 290 |
