Assessment Of Wavefront Measurements From A Low-Cost, Portable, Aberrometry-Based Autorefractor

Purpose: A pilot study to assess the measurement of both low-and high-order ocular aberrations from a low-cost portable wavefront aberrometer.Methods: A total of 41 patients (age 53±17 years) were recruited and underwent non-cycloplegic measurements on a desktop wavefront aberrometer (Wavescan) and a portable wavefront autorefractor (QuickSee). Each eye was measured 3 times under consistent lighting condition. From the Wavescan, we recorded refraction, pupil size, and Zernike coefficients for each eye sequentially. QuickSee is a low-cost, hand-held, open-view autorefractor based on aberrometry. From the QuickSee, we recorded Shack-Hartmann spot patterns for 10 seconds from both eyes at the same time. In eyes where the pupil was fully captured on the QuickSee sensor, the resulting spot diagrams were post-processed with a custom-developed algorithm to calculate Zernike coefficients …