Table 1. Comparison of biometric measurements of adolescents with ametropia by two biometric instruments.
| Instrument | No. of eyes | AL (mm) | Km (D) | ACD (mm) | WTW (mm) |
| IOL-Master700 | 110 | 24.805±0.969 | 42.642±1.365 | 3.777±0.224 | 12.138±0.415 |
| IOL-Master500 | 110 | 24.777±0.959 | 42.774±1.295 | 3.676±0.219 | 12.075±0.383 |
| difference | 110 | 0.028±0.110 | -0.102±0.674 | 0.101±0.085 | 0.064±0.171 |
| t | 2.664 | -1.583 | 12.505 | 3.911 | |
| P | 0.009 | 0.116 | 0.000 | 0.000 |
AL: Axial length; Km: Mean corneal anterior surface keratometry; ACD: Anterior chamber depth; WTW: Horizontal corneal diameter.
mean±SD