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| Contact lens power for distance | Dioptersa (range) |
|---|---|
| Targeted, based on 1 month refraction | 26.0 ± 4.5 (15.0-35.0) |
| Physician-estimated | 26.4 ± 4.9 (13.0-34.0) |
| Regression | 27.0 ± 5.1 (14.2-34.6) |
| SRK/T | 28.2 ± 5.1 (13.4-34.6) |
SRK/T, Sanders-Retzlaff-Kraff theoretic.
Appropriate correction for near vision should be added to this; the IATS used +2 D overcorrection for near.
