• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Doctoral Thesis
DOI
https://doi.org/10.11606/T.5.2021.tde-10032022-094641
Document
Author
Full name
Aline Cristina Fioravanti Lui Alionis
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2021
Supervisor
Committee
Alves, Milton Ruiz (President)
Giovedi Filho, Renato
Manzano, Roberta Pereira de Almeida
Santo, Ruth Miyuki
Title in Portuguese
Lentes oftálmicas com filtro seletivo de luz azul-violeta, sem e com poder adicional de 0,4 D na zona de perto, para astenopia digital
Keywords in Portuguese
Astenopia
Doenças oculares
Fadiga visual
Luz azul - violeta
Medicina do Trabalho
Saúde ocupacional
Síndrome da visão do computador
Abstract in Portuguese
Objetivo: Avaliar os efeitos (benefícios) do uso de lentes oftálmicas com filtro seletivo de luz azul-violeta, sem e com poder adicional de 0,4D na zona de perto para astenopia digital. Métodos: Realizou-se um ensaio clínico controlado, randomizado e mascarado, com 49 voluntários (idade, 29 ± 5,5 anos; masculino: feminino, 18: 31). A astenopia digital foi avaliada por meio de questionário. A amplitude de acomodação foi medida pelo método do ponto próximo de acomodação. O ponto próximo de convergência foi mensurado com a aproximação de um optotipo 0,50m até o examinado ver em diplopia. Estas avaliações foram realizadas com o uso de lentes oftálmicas sem filtro seletivo de luz azul (baseline) e após por 4 semanas com o uso de lentes com filtro seletivo de luz azul-violeta, sem e com poder adicional de 0,4D na zona de perto. O conforto visual no uso das lentes testadas foi avaliado nas atividades ler um livro, usar o smartphone, assistir a TV, usar o computador e usar o tablet. Resultados: Com base no questionário, o escore total de astenopia baseline (17,61± 5,51) foi reduzido para 13,78 ± 7,51, no uso de lentes unifocais com filtro seletivo de luz azul-violeta (p=0,003) e para 12,53 ± 10,28 no uso das lentes com filtro seletivo de luz azul-violeta e poder adicional de 0,4D na zona de perto (p=0,000). Entre as lentes testadas, não houve diferença no escore total de astenopia média (p=0,002) e na avaliação de conforto visual. A amplitude de acomodação média e o ponto de próximo de convergência médio não foram alterados. Conclusões: A astenopia digital baseline foi significativamente reduzida no uso de lentes oftálmicas com filtro seletivo de luz azul-violeta, sem e com poder adicional de 0,4 D na zona de perto. Os escores de astenopia digital e de conforto visual no uso das lentes testadas foram similares
Title in English
Ophthalmic lenses with selective blue-violet light filter, without and with additional 0.4 D power in the near zone for digital asthenopia
Keywords in English
Asthenopia
Blue - violet light
Computer visual syndrome
Occupational health
Occupational medicine
Visual disorders
Visual fatigue
Abstract in English
Purpose: Evaluate the effects (benefits) of ophthalmic lenses with a selective blue-violet light filter, without and with additional power of 0.4 D in the near zone for digital asthenopia. Methods: A controlled, randomized and blinded clinical trial was conducted with 49 volunteers (age, 29 ± 5.5 years; male: female, 18:31). Digital asthenopia was evaluated by a questionnaire. Accommodation amplitude was measured by the near point of accommodation method. Near point of convergence was measured by approaching an optotype 0.50 m until the examined one sees in diplopia. Evaluations were carried out with the use of ophthalmic lenses without a selective blue-violet light filter (baseline), and after 4 weeks with the use of lenses with a selective blue-violet light filter, without and with an additional 0.4D power in the near zone. During the use of the tested lenses, visual comfort was evaluated in activities such as read a book, use the smartphone, watch TV, use the computer and use the tablet. Results: Based on the questionnaire, total baseline mean asthenopia score (17.61± 5.51) was reduced to 13.78 ± 7.51, in the use of lenses with selective filter of blue-violet light (p=0.003) and for 12.53 ± 10.28 in the use of lenses with selective filter of blue-violet light with additional 0.4D power in the near zone (p = 0.000). Between the lenses tested, there was no difference in the total mean asthenopia score (p=0.002) and in the evaluation of visual comfort. Mean accommodation amplitude and mean near point of convergence were not changed. Conclusions: Baseline digital asthenopia was significantly reduced in the use of ophthalmic lenses with selective blue-violet light filter, without and with additional power of 0.4 D in the near zone. The scores of digital asthenopia and visual comfort in the use of the lenses tested were similar
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2022-03-25
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2022. All rights reserved.