RT Journal Article T1 Calculation of optical imbalances in ophthalmic lenses using a new algorithm based on the local dioptric power matrix formalism A1 Gómez Pedrero, José Antonio A1 Alonso Fernández, José A1 Bernabeu Martínez, Eusebio AB We present a new algorithm to calculate the optical imbalances and differential prismatic effects that appear when two eyes look at an object through correcting eyeglasses. These are important magnitudes in ophthalmic optics because large amounts of them will disturb the binocular vision of the spectacle wearer. As a practical application of our algorithm, the distribution of optical imbalances and differential prismatic powers for a pair of progressive addition lenses has been calculated, and we obtain information about the effects of this kind of lens on the binocular vision of the wearer. PB Optical Society of America SN 0740-3232 YR 2001 FD 2001-07 LK https://hdl.handle.net/20.500.14352/59226 UL https://hdl.handle.net/20.500.14352/59226 LA eng NO © Optical Society of America.We thank the Ministerio de Educación y Ciencia (Spain), for the financial support of this work within the project TAP98-0701. NO Ministerio de Educación y Ciencia (MEC), España DS Docta Complutense RD 9 may 2025