Myopia has become a noteworthy issue due to the increasing use of
our eyes. We propose a continuous power variation vision-training device
based on Alvarez lenses with the power ranging from −10 D to
+2 D. First, we introduce the principle of Alvarez lenses and the
evaluation method of dioptric power and astigmatism. Then, we optimize the
optical system described by Zernike polynomials. Finally, we analyze the
distributions of dioptric power and astigmatism with the overall surface
analysis and fields of view (FOVs) analysis. The results show that the
optical performance of an optimized system can meet the requirement within
a 40° FOV.
© 2018 Chinese Laser Press
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