Design and clinical evaluation of a handheld wavefront autorefractor
Purpose To introduce a novel autorefractor design that is intended to be manufacturable at
low cost and evaluate its performance in measuring refractive errors. Methods We …
low cost and evaluate its performance in measuring refractive errors. Methods We …
Miniature tunable Alvarez lens driven by piezo actuator
Alvarez lenses can achieve focal length tuning by shifting a pair of optical elements with
cubic surfaces in a direction perpendicular to the optical axis, offering us a series of …
cubic surfaces in a direction perpendicular to the optical axis, offering us a series of …
Wide field-of-view bifocal eyeglasses
S Barbero, J Rubinstein - Optical Systems Design 2015 …, 2015 - spiedigitallibrary.org
When vision is affected simultaneously by presbyopia and myopia or hyperopia, a solution
based on eyeglasses implies a surface with either segmented focal regions (eg bifocal …
based on eyeglasses implies a surface with either segmented focal regions (eg bifocal …