Laser & Optoelectronics Progress, Volume. 57, Issue 21, 213301(2020)
Intraocular Lens Model and Its Three-Dimensional Printing Technology Based on Human Eye Data in China
Aiming at the individual differences of human eye, it is important to establish a lens optical model that is consistent to human eye data in China and implement the corresponding digital processing technology. According to the three-dimensional(3D) digital model of the lens, 3D printing technology can print the lens model with simple steps and low cost. Based on the measured corneal parameters, intraocular distances, refractive index of each medium, and eye aberration, the lens optical model is reconstructed. We establish a 1 mm-thick gradient refractive index lens model with polymethylmethacrylate (PMMA) and polylactic acid (PLA) as materials, and a 1 mm-thick single refractive index lens model with photosensitive resin as the material. The single refractive index lens model is printed by stereo lithography appearance (SLA) technology and the gradient refractive index lens model is printed by fused deposition molding (FDM) technology. The results show that the gradient refractive index lens model printed by FDM technology has serious step effects. The single refractive index lens model printed by SLA technology has a stress of 87.9 nm/mm. The difference between the focal length of the lens model and the theoretical value is 4.98% and the roughness of the surface is about 120 nm.
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Wang Danqi, Yuan Qun, Yin Changjun, Gao Zhishan, Li Xinhua. Intraocular Lens Model and Its Three-Dimensional Printing Technology Based on Human Eye Data in China[J]. Laser & Optoelectronics Progress, 2020, 57(21): 213301
Category: Vision, Color, and Visual Optics
Received: Jan. 5, 2020
Accepted: --
Published Online: Oct. 26, 2020
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