The angle between visual axis and optical axis is calculated from the cornea data for eight eyes. According to the measurements of the corneal surfaces

the optical axis lengths

the wavefront aberrations and the angle obtained from calculation

the individual eye models involving the angle between visual axis and optical axis are constructed with ZEMAX software. The constructed eye models are then used to investigate the variations of transverse chromatic aberration (TCA) at fovea with the displacement of artificial pinhole from the visual axis. The result shows that TCA increases with the displacement linearly at an average ratio of 5.7 arcmin/mm

with some differences among the eight eyes over the range from 5.46 arcmin/mm to 5.95 arcmin/mm. Then

we investigate the variation of TCA with eccentricity over the spectrum from 420 nm to 700 nm. Across the field of view of 20°both at nasal and temporal

TCA increases with the eccentricity at an average ratio of 0.36 arcmin/deg for the eight eyes over the range from 0.32 arcmin/deg to 0.44 arcmin/deg. And the variation of TCA is slower at the end of long wavelength than that at the end of short wavelength.