Design of Dual Element Accommodative Intraocular Lens
Xiaohong Zhou1 , Liangyu Wang2 , Pengqian Yang2
1Department of Ophthalmology, Children's Hospital of Fudan University, National Children’s Medical Center, Shanghai 201102, China 2High Power Laser Physics Joint Laboratory of Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract：Objective: To evaluate the imaging quality of the dual-element accommodative intraocular lens proposed by the author. Methods: Getting the results by modelling and simulating the eye with IOL, and comparing with the existing research results. The dual-element accommodative intraocular lens proposed by the author were simulated with the optical design software Zemax, and the imaging results at different viewing distances (L=6 m, L=70 cm, L=40 cm and L=25 cm) were simulated, obtaining the MTF value when the spatial frequency is 100 cycles/mm. Comparing with the results of Simonov's research and analyzing, checking whether the simulation results meet standard of the optical properties and testing methods of intraocular lens implantation. Results: The dual-element accommodative intraocular lens proposed by the author was simulated with the optical design software. The results showed that no matter α=0°or α=5° when the pupil size is 3 mm and the wavelength λ = 0.546 μm, the modulation transfer function (MTF) values corresponding to the frequency of 100 cycles/mm are all greater than 0.43, which meets standard of the optical properties and testing methods of intraocular lens implantation. When α=0°, the simulation results are greatly improved compared with Simonov's research results; when α=5°, there is no significant improvement. Conclusion: The simulation results of the dual-element accommodative intraocular lens proposed by the author meet the requirements of the optical properties and testing methods of intraocular lens implantation; compared with Simonov's research results, the results are generally improved.
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