Abstract
The link between retinal peripheral defocus, and its influence on myopia development has opened the need for accurate scientific investigations to understand the peripheral mechanisms of action. In such a manner, high-quality peripheral refractometry has become the cornerstone of myopia research. A clinical aberrometer is an efficient and robust instrument for measuring wavefront error for central vision. However, several difficulties prevent standardization in clinical use to measure aberrations in the peripheral field. In this work, we developed a new scanning Shack Hartmann aberrometer using a different economical customized relay telescope and a dual-axis fast steering mirror. The study aims to investigate the characteristics of defocus aberration in the instrument with support of digitalization techniques. Two physical eye models were built and analyzed to show and validate the working principle. The results of this research provide knowledge for remote maintenance and calibration of ophthalmological instruments, remote visual care and telemedicine.
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