RT Journal Article
T1 Deflectometric method for the measurement of user power for ophthalmic lenses
A1 Quiroga Mellado, Juan Antonio
A1 Gómez Pedrero, José Antonio
A1 Alonso Fernández, José
A1 Vargas Balbuena, Javier
AB This paper presents a deflectometric technique to measure the power of an ophthalmic lens as perceived by the user. It is based on a calibrated camera acting as a pinhole in order to measure ray deflection along the same path as the visual axis when the lens is held in front of the eye. We have analyzed numerically the accuracy of our technique, and it has been compared experimentally with a commercial "lens mapper" and with the real user power calculated from the measured topography of the lens surfaces to state the reliability and accuracy of the presented technique.
PB The Optical Society of America
SN 0003-6935
YR 2010
FD 2010-09-20
LK https://hdl.handle.net/20.500.14352/43965
UL https://hdl.handle.net/20.500.14352/43965
LA eng
NO © 2010 Optical Society of America.This work has been financially supported by the Spanish Ministry of Science and Technology throughthe project number DPI2009-09023. It has also benefited from the framework of the Spanish Optometry Network.
NO Spanish Ministry of Science and Technology
NO Spanish Optometry Network
DS Docta Complutense
RD 8 abr 2025