Figure 3
From: A new low-cost, compact, auto-phoropter for refractive assessment in developing countries
Simulated and measured data of normalized Zernike values. Variations of Zernike values related to defocus (Z4), 45° astigmatism (Z5), and 90° astigmatism (Z6) vs. the volume changes of liquid inside the simulated (a) defocus lens, (b) 45° astigmatic lens, and (c) 90° astigmatic lens. The corresponding measured results are represented for (d) defocus lens, (e) 45° astigmatic lens, and (f) 90° astigmatic lens.
