Cozza, Federica, Compagnoni, Matteo Monzio, Airoldi, Chiara, Braga, Chiara, Nigrotti, Gabriele, Vlasak, Natalia, Larcher, Silvano, Zeri, Fabrizio and Tavazzi, Silvia (2020). Efectos sobre el desempeño visual de dos filtros Longpass. Journal of Optometry, 13 (2), pp. 102-112.
Abstract
Purpose: This study compared visual performance and optical properties of three filters. Method: Two groups of twenty adults were recruited: wearers of progressive addition lenses (PAL, 46–73 years) and wearers of single vision lenses (SVL, 26–55 years). Three spectacle filters (Hoya, Japan) were compared: clear control, Standard Drive (STD), and Professional Drive (PRO) lenses. Optical transmittance was measured by a Jasco V-650 spectrophotometer. Best corrected visual acuity (BCVA) was measured in photopic (BCVAphotopic) and mesopic (BCVAmesopic) conditions and under glare (BCVAglare). Photopic contrast sensitivity (CS) was also measured. Results: The three longpass filters show cutoff at 426 ± 2 nm (STD/PRO) and 405 ± 2 nm (clear lens). BCVAglare improved with Drive filters compared to the clear one (p < 0.05) from 0.03 to -0.02 (STD) and to -0.01 (PRO) for PAL and from -0.08 to -0.12 (STD and PRO) for SVL. For PAL, BCVAmesopic improved from 0.15 to 0.12 (STD, p < 0.05) and 0.13 (PRO), while no substantial difference was observed for SVL. CS showed some improvements with Drive lenses at some angular frequencies between 6 and 18 cycles/deg, mainly for the PAL group. No BCVAphotopic differences were found. After testing all filters, each for two weeks, 79% (PAL) and 60% (SVL) of participants preferred Drive lenses. Conclusions: Drive lenses are found to maintain or improve some visual functions compared to the clear lens. The improvement of mesopic visual acuity, visual acuity under glare, and contrast sensitivity is mainly attributed to the reduction of intraocular light scattering as a consequence of the total light attenuation in the spectral range below the cutoff.
Publication DOI: | https://doi.org/10.1016/j.optom.2019.07.001 |
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Divisions: | College of Health & Life Sciences |
Additional Information: | © 2019 Spanish General Council of Optometry. Published by Elsevier España, S.L.U. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Funding: HOYA Corporation, Tokyo, Japan. |
Uncontrolled Keywords: | Contrast sensitivity,Glare,Longpass,Macular pigment,Visual acuity,Optometry |
Publication ISSN: | 1989-1342 |
Last Modified: | 06 Aug 2024 08:39 |
Date Deposited: | 21 Oct 2019 13:31 |
Full Text Link: | |
Related URLs: |
http://www.scop ... tnerID=8YFLogxK
(Scopus URL) https://linking ... 888429619300585 (Publisher URL) |
PURE Output Type: | Article |
Published Date: | 2020-04 |
Published Online Date: | 2019-10-18 |
Accepted Date: | 2019-07-13 |
Authors: |
Cozza, Federica
Compagnoni, Matteo Monzio Airoldi, Chiara Braga, Chiara Nigrotti, Gabriele Vlasak, Natalia Larcher, Silvano Zeri, Fabrizio ( ![]() Tavazzi, Silvia |
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