RT Journal Article T1 Sampling geometries for ocular aberrometry: A model for evaluation of performance A1 Diaz Santana, Luis A1 Walker, Grace A1 Bará Viñas, Salvador AB The purpose of this work is to outline a simple model toassess the relative merits of different sampling grids for ocular aberrometryand illustrate it with an example. While in traditional Hartmann-Shacksetups the sampling grid geometries have been somewhat restricted by thegeometries of the available microlens arrays, other techniques such as laserray tracing or spatially resolved refractometry allow for a greater freedomof choice. For all available setups, including HS, it is worth studyingwhich of these choices perform better in terms of accuracy (closenessof the obtained results to the actual ones) and precision (uncertaintyof the obtained results). Whilst the mathematical model presented inthis paper is quite general and it can be applied to optimise existing ornew aberrometers, the numerical results presented in the example areonly valid for the particular aberration sample used and centroiding algorithms studied, and should not be generalised outside of these boundaries PB OSA Publishing SN 1094-4087 YR 2005 FD 2005 LK http://hdl.handle.net/10347/22878 UL http://hdl.handle.net/10347/22878 LA eng NO Luis Diaz-Santana, Grace Walker, and Salvador X Bará, "Sampling geometries for ocular aberrometry: A model for evaluation of performance," Opt. Express 13, 8801-8818 (2005) DS Minerva RD 22 abr 2026