Producing Myopia Glasses by 3D Printing

Abstract

Facing the serious problem of rapidly increasing myopia rate, the demand for eyeglasses is increasing, while the traditional manufacturing methods for eyeglass frames and lenses are long, slow, and expensive. In this article, we propose to fabricate myopia glasses by 3D printing method, and the frames and lenses are produced by digital light processing and stereo lithography appearance methods, respectively. Through the tensile and elongation at break test, it shows that the mechanical properties of the 3D printed frames are good, and the mechanical collision simulation results show that it does not affect the normal use under the impact of large speeds, which shows a high degree of uniformity with the mechanical experiments; through the pressure test at different positions after wearing, it verifies the wearing comfort of the myopic frames; after polishing the printed myopic lenses, through the optical experiments, it shows that the transmission rate of the myopic lens is comparable to that of the traditional glasses. The transmission rate has been more similar to the traditional glasses; measurement of the refraction of the printed myopic lenses compared with the theory, the error is within the acceptable range. Through the wearing test, it shows that the 3D-printed myopic lenses have a certain corrective effect on visual acuity.