Impact of LED exposure on contrast sensitivity and protective efficacy of blue-blocking lenses.

IF 1.8 4区医学 Q2 OPHTHALMOLOGY

International journal of ophthalmology Pub Date : 2025-10-18 eCollection Date: 2025-01-01 DOI:10.18240/ijo.2025.10.18

Dolvin Monterio, Elizebeth Olive Akansha Manoj Kumar, Mousumi Ghosh, Radhika Poojary, Judy Jose, Judith Shefali Jathanna, Manasa Bhandarkar, Nagarajan Theruveethi

{"title":"Impact of LED exposure on contrast sensitivity and protective efficacy of blue-blocking lenses.","authors":"Dolvin Monterio, Elizebeth Olive Akansha Manoj Kumar, Mousumi Ghosh, Radhika Poojary, Judy Jose, Judith Shefali Jathanna, Manasa Bhandarkar, Nagarajan Theruveethi","doi":"10.18240/ijo.2025.10.18","DOIUrl":null,"url":null,"abstract":"Aim: To measure the contrast sensitivity (CS) using computer-based Chart2020 software pre- and post-white light exposure with and without blue-blocking lenses (BBLs).Methods: The study included participants aged 18 to 25y (n=30 eyes), where baseline CS was measured before the experiment. Following this, the participants were exposed to two white light-emitting diodes (LEDs; 450 lx each), placed at a 45-degree angle from the participant's eye and 80 cm from the light source. All participants were randomly divided into three groups (BBL1- Placebo lens, BBL2- Crizal Prevencia, BBL3- Duravision) by sequential randomisation, which was double-blinded. Post-light exposure, the CS was measured monocularly with a calibrated computer-based CS Chart-2020 software at different log units.Results: CS measured using Chart-2020 software at 0.8, 1.5, 6, 12, and 18 cpd pre- and post-white LED exposure with and without BBLs showed a significant difference (P<0.05) in contrast threshold and log contrast at 6 cpd and 18 cpd (P<0.05) and showed no significant differences in 0.8, 1.5, 12 cpd (P>0.05).Conclusion: This study shows that exposure to white LEDs can diminish CS, while BBLs may ameliorate these negative effects.","PeriodicalId":14312,"journal":{"name":"International journal of ophthalmology","volume":"18 10","pages":"1944-1948"},"PeriodicalIF":1.8000,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12454013/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International journal of ophthalmology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.18240/ijo.2025.10.18","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Aim: To measure the contrast sensitivity (CS) using computer-based Chart2020 software pre- and post-white light exposure with and without blue-blocking lenses (BBLs).

Methods: The study included participants aged 18 to 25y (n=30 eyes), where baseline CS was measured before the experiment. Following this, the participants were exposed to two white light-emitting diodes (LEDs; 450 lx each), placed at a 45-degree angle from the participant's eye and 80 cm from the light source. All participants were randomly divided into three groups (BBL1- Placebo lens, BBL2- Crizal Prevencia, BBL3- Duravision) by sequential randomisation, which was double-blinded. Post-light exposure, the CS was measured monocularly with a calibrated computer-based CS Chart-2020 software at different log units.

Results: CS measured using Chart-2020 software at 0.8, 1.5, 6, 12, and 18 cpd pre- and post-white LED exposure with and without BBLs showed a significant difference (P<0.05) in contrast threshold and log contrast at 6 cpd and 18 cpd (P<0.05) and showed no significant differences in 0.8, 1.5, 12 cpd (P>0.05).

Conclusion: This study shows that exposure to white LEDs can diminish CS, while BBLs may ameliorate these negative effects.

查看原文本刊更多论文

LED曝光对防蓝光镜片对比度敏感度和防护效果的影响。

目的：利用基于计算机的Chart2020软件，在使用和不使用蓝挡透镜（BBLs）的白光照射前后测量对比灵敏度（CS）。方法：研究对象年龄在18 - 25岁（n=30眼），在实验前测量基线CS。在此之后，参与者被暴露在两个白色发光二极管（led；每个450 lx），与参与者的眼睛成45度角，距离光源80厘米。所有参与者随机分为三组（BBL1-安慰剂透镜，BBL2-预防Crizal， BBL3- Duravision），采用双盲随机法。光照后，使用基于计算机的CS Chart-2020软件在不同的测井单元测量CS。结果：使用图表-2020软件在0.8、1.5、6、12和18 cpd的白光LED暴露前后，有和没有BBLs的CS显示显着差异（PPP>0.05）。结论：本研究表明，暴露于白光led可减少CS，而BBLs可改善这些负面影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International journal of ophthalmology Medicine-Ophthalmology

CiteScore

2.50

自引率

7.10%

发文量

3141

审稿时长

4-8 weeks

期刊介绍： · International Journal of Ophthalmology-IJO (English edition) is a global ophthalmological scientific publication and a peer-reviewed open access periodical (ISSN 2222-3959 print, ISSN 2227-4898 online). This journal is sponsored by Chinese Medical Association Xi’an Branch and obtains guidance and support from WHO and ICO (International Council of Ophthalmology). It has been indexed in SCIE, PubMed, PubMed-Central, Chemical Abstracts, Scopus, EMBASE , and DOAJ. IJO JCR IF in 2017 is 1.166. IJO was established in 2008, with editorial office in Xi’an, China. It is a monthly publication. General Scientific Advisors include Prof. Hugh Taylor (President of ICO); Prof.Bruce Spivey (Immediate Past President of ICO); Prof.Mark Tso (Ex-Vice President of ICO) and Prof.Daiming Fan (Academician and Vice President, Chinese Academy of Engineering. International Scientific Advisors include Prof. Serge Resnikoff (WHO Senior Speciatist for Prevention of blindness), Prof. Chi-Chao Chan (National Eye Institute, USA) and Prof. Richard L Abbott (Ex-President of AAO/PAAO) et al. Honorary Editors-in-Chief: Prof. Li-Xin Xie(Academician of Chinese Academy of Engineering/Honorary President of Chinese Ophthalmological Society); Prof. Dennis Lam (President of APAO) and Prof. Xiao-Xin Li (Ex-President of Chinese Ophthalmological Society). Chief Editor: Prof. Xiu-Wen Hu (President of IJO Press). Editors-in-Chief: Prof. Yan-Nian Hui (Ex-Director, Eye Institute of Chinese PLA) and Prof. George Chiou (Founding chief editor of Journal of Ocular Pharmacology & Therapeutics). Associate Editors-in-Chief include: Prof. Ning-Li Wang (President Elect of APAO); Prof. Ke Yao (President of Chinese Ophthalmological Society) ; Prof.William Smiddy (Bascom Palmer Eye instituteUSA) ; Prof.Joel Schuman (President of Association of University Professors of Ophthalmology,USA); Prof.Yizhi Liu (Vice President of Chinese Ophtlalmology Society); Prof.Yu-Sheng Wang (Director of Eye Institute of Chinese PLA); Prof.Ling-Yun Cheng (Director of Ocular Pharmacology, Shiley Eye Center, USA). IJO accepts contributions in English from all over the world. It includes mainly original articles and review articles, both basic and clinical papers. Instruction is Welcome Contribution is Welcome Citation is Welcome Cooperation organization International Council of Ophthalmology(ICO), PubMed, PMC, American Academy of Ophthalmology, Asia-Pacific, Thomson Reuters, The Charlesworth Group, Crossref,Scopus,Publons, DOAJ etc.