Table 1. Comparative table showing the preoperative clinical data of eyes included in the two groups.
| Parameters | Bifocal group |
Trifocal group |
P | ||
| Mean (SD) | Median (Range) | Mean (SD) | Median (Range) | ||
| UDVA (logMAR) | 0.57 (0.36) | 0.50 (0.10 to 1.50) | 0.54 (0.36) | 0.40 (0.00 to 1.30) | 0.665 |
| CDVA (logMAR) | 0.20 (0.31) | 0.10 (-0.20 to 1.00) | -0.03 (0.10) | 0.00 (-0.20 to 0.20) | <0.001 |
| UNVA (logMAR, 33 cm) | 0.73 (0.32) | 0.70 (0.30 to 1.40) | 0.81 (0.22) | 0.90 (0.20 to 1.20) | 0.205 |
| CNVA (logMAR, 33 cm) | 0.24 (0.27) | 0.20 (-0.20 to 1.10) | 0.05 (0.10) | 0.00 (-0.20 to 0.20) | <0.001 |
| DCNVA (logMAR, 33 cm) | 0.63 (0.24) | 0.60 (0.10 to 1.40) | 0.55 (0.19) | 0.55 (0.20 to 0.90) | 0.065 |
| UNVA (logMAR, 40 cm) | 0.76 (0.34) | 0.70 (0.30 to 1.50) | 0.81 (0.24) | 0.85 (0.30 to 1.20) | 0.319 |
| CNVA (logMAR, 40 cm) | 0.27 (0.30) | 0.20 (0.00 to 1.50) | 0.07 (0.12) | 0.10 (-0.10 to 0.40) | <0.001 |
| DCNVA (logMAR, 40 cm) | 0.62 (0.28) | 0.60 (0.10 to 1.50) | 0.56 (0.18) | 0.60 (0.10 to 0.90) | 0.357 |
| UIVA (logMAR, 66 cm) | 0.61 (0.36) | 0.60 (0.00 to 1.50) | 0.70 (0.30) | 0.65 (0.20 to 1.30) | 0.318 |
| CIVA (logMAR, 66 cm) | 0.17 (0.28) | 0.10 (-0.20 to 1.10) | -0.02 (0.10) | 0.00 (-0.20 to 0.10) | 0.001 |
| DCIVA (logMAR, 66 cm) | 0.41 (0.27) | 0.30 (0.00 to 1.40) | 0.26 (0.20) | 0.30 (-0.10 to 0.80) | 0.007 |
| UIVA (logMAR, 80 cm) | 0.60 (0.33) | 0.60 (0.10 to 1.20) | 0.63 (0.27) | 0.60 (0.10 to 1.30) | 0.728 |
| CIVA (logMAR, 80 cm) | 0.18 (0.27) | 0.10 (-0.10 to 1.10) | 0.01 (0.09) | 0.00 (-0.20 to 0.20) | 0.001 |
| DCIVA (logMAR, 80 cm) | 0.39 (0.24) | 0.40 (0.00 to 1.10) | 0.20 (0.20) | 0.20 (-0.10 to 1.00) | <0.001 |
| Sphere (D) | 0.43 (3.15) | 0.75 (-7.25 to 9.00) | 0.91 (2.96) | 1.50 (-8.75 to 5.00) | 0.030 |
| Cylinder (D) | -0.54 (0.56) | -0.50 (-2.25 to 0.00) | -0.34 (0.35) | -0.25 (-1.25 to 0.00) | 0.076 |
| Spherical equivalent (D) | 0.20 (3.12) | 0.75 (-7.25 to 8.12) | 0.75 (3.01) | 1.38 (-8.75 to 4.88) | 0.038 |
| KM (D) | 43.63 (1.86) | 43.89 (40.59 to 47.64) | 43.12 (1.71) | 42.89 (39.71 to 46.88) | 0.174 |
| Corneal astigmatism (D) | 0.56 (0.28) | 0.53 (0.18 to 1.17) | 0.58 (0.22) | 0.58 (0.09 to 1.01) | 0.413 |
| AL (mm) | 23.35 (1.26) | 23.38 (19.23 to 25.31) | 23.32 (1.57) | 23.10 (21.05 to 28.09) | 0.181 |
| ACD (mm) | 3.32 (0.36) | 3.38 (2.48 to 3.85) | 3.18 (0.33) | 3.17 (2.55 to 4.05) | 0.023 |
| IOL power (D) | 20.79 (4.02) | 20.50 (12.50 to 33.00) | 22.18 (4.79) | 22.25 (11.50 to 29.50) | 0.017 |
SD: Standard deviation; D: Diopters; IOL: Intraocular lens; UDVA: Uncorrected distance visual acuity; CDVA: Corrected distance visual acuity; UNVA: Uncorrected near visual acuity; DCNVA: Distance-corrected near visual acuity; CNVA: Corrected near visual acuity; UIVA: Uncorrected intermediate visual acuity; CIVA: Corrected intermediate visual acuity; DCIVA: Distance-corrected intermediate visual acuity; KM: Mean keratometry; AL: Axial length; ACD: Anterior chamber depth.