Design of wavefront-guided lens based on individual eye optical model

A new method to design a wavefront-guided lens is proposed based on an individual eye optical model. The individual eye model is constructed, then by regarding the eyeball and the wavefront-guided lens as a single system. For the lens-eye system, the surface profiles of the lens are determined by optimizing the lens design. In addition, the visual performance of the lens-eye system is analyzed for both ±7° field of view and ±20° rotation of the eyeball. In comparison with the results from wavefront fitting, the prescription difference in defocus, astigmatism and in the axis of astigmatism are (-0.057±0.015) m-1, (0.015±0.013) m-1, (0.100±0.316)°, respectively. Furthermore, the visual acuity of the lens-eye system is above 1.25 because of the correction of the wavefront-guided lens. The visual acuity for the eight eyes is as high as 1.5. For a field of view of 0°, the performance for the eye without rotation is better than that of eyes with a rotation of 20°. However, for a field of view of 7°, the performance for eyes without rotation is much better than that of eyes with a rotation of ±20°. Experiments show that the prescription of the wavefront-guided lens from the new method is objective and reliable and it is possible to predict the visual quality of the eye with the wavefront-guided lens.