| Sample size | Starbursts b |  | Mixed focus b |
---|
Correlation coefficient | P | power | Correlation coefficient | P | power | Â |
---|
BCDVA | 104 | 0.427 | < 0.001*** | 98.8% |  | -0.362 | < 0.001*** | 96.4% |  |
PVA 100% a | 104 | 0.371 | < 0.001*** | 96.1% |  | -0.366 | < 0.001*** | 96.2% |  |
PVA 20% a | 104 | 0.328 | < 0.001*** | 93.5% |  | -0.328 | < 0.001*** | 83.8% |  |
PVA 9% a | 104 | 0.163 | 0.098 | 37.3% | Â | -0.144 | 0.146 | 28.1% | Â |
SR a | 104 | -0.208 | 0.034* | 51.1% | Â | 0.09 | 0.366 | 16.1% | Â |
OSI a | 104 | 0.442 | < 0.001*** | 99.0% |  | -0.342 | < 0.001*** | 93.0% |  |
MTF cut-off frequency a | 104 | -0.365 | 0.001*** | 95.5% | Â | 0.356 | 0.001*** | 95.4% | Â |
- a The OQAS optical metrics include PVA 100%, PVA 20%, PVA 9%, SR, OSI and MTF cutoff frequency
- b The iTrace optical metrics include blur/double vision, glare/halo, starburst, mixed focus, night myopia, and night hyperopia. Starburst and mixed focus were the only two iTrace optical metrics that exhibited statistical correlation with the OQAS optical metrics and BCDVA
- BCDVA = best corrected distance visual acuity; PVA 100% = predicted visual acuity at contrast of 100%; PVA 20% = predicted visual acuity at contrast of 20%; PVA 9% = predicted visual acuity at contrast of 9%; SR = strehl ratio; MTF = Modulation transfer function; OSI = objective scattering index
- *P < 0.05, **P ≤ 0.01; ***P ≤ 0.001