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Table 4 Percentages of normal axial length eyes within various diopter ranges of the outcomes predicted

From: Different lens power calculation formulas for the prediction of refractive outcome after phacoemulsification with silicone oil removal

Range (D) SRK/Tn (%) Holladay 1n (%) Holladay 2n (%) Haigisn (%) Hoffer Qn (%) Barrett Universal II P
±0.25 3 (10.7) 4 (14.3) 5 (17.9) 4 (14.3) 6 (21.4) 4 (14.3) 0.842
±0.50 11 (39.3) 12 (42.9) 11 (39.3) 8 (28.6) 13 (46.4) 11 (39.3) 0.707
±0.75 18 (64.3) 18 (64.3) 18 (44.3) 19 (67.9) 16 (57.1) 19 (67.9) 0.942
±1.00 21 (75.0) 23 (82.1) 22 (78.6) 23 (82.1) 23 (82.1) 22 (78.6) 0.941
> 1.00 7 (25.0) 5 (17.9) 6 (21.4) 5 (17.9) 5 (17.9) 6 (21.4 0.952