An electrically-powered, ophthalmic device intended to measure multiple dimensional parameters of the eye (e.g., refractive error, corneal anterior surface curvature/thickness, distance between pupils) during an ophthalmic examination, typically to determine a patient's prescription for glasses or evaluate the need for surgery; it not dedicated to measurement of a single dimensional parameter (i.e., it is not a refractometry-, keratometry-, pachymetry-, pupillometry-, or topography-only device). It may be a hand-held or tabletop device, and may be designed for connection to an off-the-shelf computer for device control and/or results analysis/display.