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Title

Changes in visual quality associated with the use of Biofinity Energys contact lenses

Resumen

Las lentes de contacto (LC) Biofinity EnergysTM han sido desarrolladas para manejar el síndrome visual informático (SVI). El objetivo del presente estudio es evaluar la calidad visual durante el uso de estas lentes, comparadas con unas lentes de diseño esférico (Biofinity®). En una única visita se adaptaron las dos LC a cada sujeto en ambos ojos de forma aleatoria y enmascarada, y se evaluó la agudeza visual (AV), la sensibilidad al contraste (SC), y la aberrometría ocular. Durante el porte de las LC Biofinity EnergysTM se observó una disminución de la AV monocular y binocular y de la SC monocular para la frecuencia de 18 ciclos por grado. Además, se ha visto un aumento de la magnitud de tetrafoil oblicuo y astigmatismo secundario. Por tanto, se puede concluir que estas LC inducen ciertas aberraciones de alto orden, que podrían explicar la disminución de la calidad visual observada.

Palabras clave

Lentes de contacto, aberraciones ópticas, sensibilidad al contraste

Abstract

Biofinity EnergysTM contact lenses (CLs) incorporate the Digital Zone OpticsTM design, which has been developed to manage computer visual syndrome (CVI). The objective of the present study is to compare contrast sensitivity (CS) and optical aberrations induced during wear of Biofinity® and Biofinity EnergysTM LCs. A total of 14 subjects attended a single visit in which they were fitted with two LCs at random without the subject or the evaluator being aware of the lens under study. Visual acuity (VA) and contrast sensitivity (CS), monocular and binocular, were assessed. In addition, ocular aberrometry was analyzed and the adaptation of each LC was tested. As results, no significant differences were seen in the adaptation of the LCs. Monocular and binocular VA was lower during wearing the Biofinity EnergysTM LCs (p = 0.002 and p = 0.045, respectively). Monocular CS was found to be decreased for the frequency of 18 cycles per degree during wearing the Biofinity EnergysTM LCs (p = 0.008). However, binocularly, only a trend to decreased frequency of 3 cycles per degree was found with the same LCs (p = 0.06). The magnitude of optical aberrations increased for oblique tetrafoil (Z-4 4) (p = 0.022) and secondary astigmatism (Z2 4) (p = 0.002) with Biofinity EnergysTM LCs. Therefore, it can be concluded that the Digital Zone OpticsTM design of Biofinity EnergysTM LCs induces certain higher order aberrations, which could explain the consequent decrease in VA and SC.

Keywords

myopia, prevalence, America, meta-analysis, review

Digital Object Identifier (DOI)

https://doi.org/10.19052/sv.vol19.iss1.7

Fecha de recepción

22 de marzo de 2021

Fecha de aceptación

27 de mayo de 2021

Fecha de publicación

2021-08-02

Licencia Creative Commons

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Tipo de documento

Artículo de Investigación

Editorial

Universidad de La Salle. Ediciones Unisalle

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