Research on Presbyopia Optometry Method Based on Diopter Regulation and Charge Couple Device Imaging Technology
Qi Zhao, Xiaoxuan Wu, Jun Zhou, Xiao Wang, Ruifeng Liu, Jing Gao
Journal of Multimedia Processing and Technologies, Vol. 8, No. 1, 2017.
DOI: 
Link: http://www.dline.info/jmpt/fulltext/v8n1/jmptv8n1_2.pdf
Abstract:
With the development of photoelectric technology and single-chip microcomputer technology, the objective (automatic) optometry technology is becoming 
more and more mature. This paper proposed a presbyopia optometry method based on diopter regulation and CCD (Charge Couple Device) imaging technology 
and, in the meantime, designed the light path of the measurement system. This method projects a test figure to the eye ground of tested eye and then 
the reflected image from eye ground is detected by CCD. At last the image is automatically identified by computer by which the far point and near point 
diopter are determined and thus the glasses parameter is calculated. This is a full automatic objective optometry method, which eliminates subjective 
factors of the tested subject. This method can acquire the glasses parameter of presbyopia accurately and quickly, and can be used to measure the 
glasses parameter of hyperopia, myopia and astigmatism.