Table 3.
Refractive Outcomes in Long (n=55) and Short Eyes (n=31) Using the BUII Formula
| Group | Refractive Outcome (D) | Mean ± SD (Range) D | 0–0.25 D (%) | 0.26–0.50 D (%) | 0.51–0.75 D (%) | 0.76–1.00 D (%) | > 1D (%) |
|---|---|---|---|---|---|---|---|
| Long (n=55) | Sphere | −0.30 ± 0.32 (−1.25 to 0.25) | 62.82 | 23.64 | 9.09 | 3.64 | 1.82 |
| Cylinder | 0.27 ± 0.34 (0.00 to 1.25) | 66.45 | 23.64 | 5.45 | 0.00 | 5.45 | |
| MRSE | −0.16 ± 0.30 (−1.12 to 0.75) | 74.55 | 14.55 | 9.09 | 0.00 | 1.82 | |
| Short (n=31) | Sphere | −0.19 ± 0.41 (−1.00 to 1.00) | 58.06 | 25.81 | 9.68 | 6.45 | 0.00 |
| Cylinder | 0.34 ± 0.39 (0.00 to 1.25) | 61.29 | 12.90 | 12.90 | 9.68 | 3.23 | |
| MRSE | −0.02 ± 0.43 (−0.50 to 1.50) | 58.06 | 35.48 | 3.23 | 0.00 | 3.23 |
Abbreviations: BUII, Barrett Universal II; D, diopters; MRSE, manifest refraction spherical equivalent; SD, standard deviation.