Time-Serial Evaluation of the Development and Treatment of Myopia in Mice Eyes Using OCT and ZEMAX

Abstract

Myopia is a significant cause of visual impairment which may lead to many complications. However, the understanding of the mechanisms of myopia is still limited. In this paper, in order to investigate the development and the treatment of myopia, we analyzed the biological structure parameters of mice eyes, obtained from optical coherence tomography (OCT), and the optical performance of mice eyes calculated using ZEMAX software (ZEMAX Development Corporation, Kirkland, WA, USA) in which the optical model was built on the segment-by-segment optically corrected OCT 3D-images. Time-serial evaluation of three groups of mice eyes (form-deprivation myopia mice eyes, normal mice eyes, and atropine-treated myopia mice eyes) was performed. In addition to the biological structure parameters, imaging performance with the development of root-mean-square wavefront aberration at six filed angles was compared and analyzed. Results show that the biological structure parameters of the eye are closely related to the development of myopia. The peripheral defocus of the retina has a significant impact on inducing myopia, which verifies the new theory of myopia development. The delaying effect of atropine solution on myopia development is shown to verify the therapeutic effect of the medicine. This study provides technical support for the investigation of the myopia mechanism.

Optimization design of the coupling scheme of the pulse laser output through the hysteroscope observation channel

“…In order to increase the laser energy entering the uterine cavity, to better achieve the coupling effect, to improve the coupling efficiency and to reduce the laser divergence, under the above experimental conditions, we have improved the cold light source end of the pulsed laser reaching the hysteroscope and designed the following programs. The combination and optical path diagram of the laser that can reach the requirement after passing through the lens was simulated with ZEMAX [16] , as shown in Figure .2. In order to facilitate the experiment and make the laser fiber end and the hysteroscope cold source end and the lens set easy to assemble and disassemble, a 3D printed holder is used.…”