OphthalmologyPub Date : 2024-10-16DOI: 10.1016/j.ophtha.2024.10.017
Zhen Ling Teo, Xiaoman Zhang, Yechao Yang, Liyuan Jin, Chi Zhang, Stanley Shuoh Jieh Poh, Weihong Yu, Youxin Chen, Jost B Jonas, Ya Xing Wang, Wei-Chi Wu, Chi-Chun Lai, Yong Liu, Rick Siow Mong Goh, Daniel Shu Wei Ting
{"title":"Privacy Preserving Technology using Federated Learning and Blockchain in protecting against Adversarial Attacks for Retinal Imaging.","authors":"Zhen Ling Teo, Xiaoman Zhang, Yechao Yang, Liyuan Jin, Chi Zhang, Stanley Shuoh Jieh Poh, Weihong Yu, Youxin Chen, Jost B Jonas, Ya Xing Wang, Wei-Chi Wu, Chi-Chun Lai, Yong Liu, Rick Siow Mong Goh, Daniel Shu Wei Ting","doi":"10.1016/j.ophtha.2024.10.017","DOIUrl":"https://doi.org/10.1016/j.ophtha.2024.10.017","url":null,"abstract":"<p><strong>Purpose: </strong>Collaboration provides valuable data for robust artificial intelligence (AI) model development. Federated learning (FL) is a privacy enhancing technology that allows collaboration while respecting privacy via the development of models without raw data transfer. However state-of-the-art FL models still face challenges in non-independent and identically distributed (non-i.i.d.) health care settings and remain susceptible to privacy breaches. We propose a novel FL framework coupled with blockchain technology to address these challenges.</p><p><strong>Design: </strong>Retrospective multicohort study SUBJECTS AND METHODS: 27,145 images from Singapore, China and Taiwan were used to design a novel FL aggregation method for the detection of myopic macular degeneration (MMD) from fundus photographs and macular disease from optical coherence tomography (OCT) scans in feature distribution skew and label distribution imbalance scenarios. We further performed adversarial attacks (label flipping and clean label). As proof of concept, blockchain was incorporated into FL to demonstrate secure transfer of model updates across collaborating sites.</p><p><strong>Main outcome measures: </strong>We evaluated our FL model performance in MMD and OCT classification and compared our model against state-of the-art FL and centralized models.</p><p><strong>Results: </strong>Our FL model showed robust performance with areas under the receiving operating characteristic curves (AUC) of 0.868±0.009 for MMD detection and 0.970±0.012 for OCT macular disease classification. In label flipping attack, our FL model had an AUC of 0.861±0.019, similar to the centralized model (AUC 0.856± 0.015) and higher than other FL models (AUC 0.578-0.819) In clean label attack, our FL model had an AUC of 0.878±0.006 which was comparable to the centralized model (AUC 0.878±0.001) and superior to other state-of-the-art FL models with AUC of 0.529-0.838. Simulation showed that the additional time with blockchain in one global epoch was around 5 seconds. The addition of blockchain to the FL framework was feasible with a minimal impact on model development time.</p><p><strong>Conclusions: </strong>Our proposed FL algorithm overcomes the shortcoming of the traditional FL in non i.i.d. situations and remains robust to against adversarial attacks. The integration of blockchain adds further security during the transfer of model updates. Blockchain-enabled FL can be a trusted platform for collaborative health AI research.</p>","PeriodicalId":19533,"journal":{"name":"Ophthalmology","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
OphthalmologyPub Date : 2024-10-14DOI: 10.1016/j.ophtha.2024.09.013
Joshua L Bierbrier, Suradech Suthiphosuwan, Jonathan A Micieli
{"title":"Ganglion Cell Analysis Unveils Hidden Ocular Impacts of a Stable Magnetic Resonance Imaging Lesion.","authors":"Joshua L Bierbrier, Suradech Suthiphosuwan, Jonathan A Micieli","doi":"10.1016/j.ophtha.2024.09.013","DOIUrl":"https://doi.org/10.1016/j.ophtha.2024.09.013","url":null,"abstract":"","PeriodicalId":19533,"journal":{"name":"Ophthalmology","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Amblyogenic Apex: The Pyramid Within the Eye.","authors":"Kanishk Singh, Sagarika Snehi, Rajesh Pattebahadur","doi":"10.1016/j.ophtha.2024.09.012","DOIUrl":"https://doi.org/10.1016/j.ophtha.2024.09.012","url":null,"abstract":"","PeriodicalId":19533,"journal":{"name":"Ophthalmology","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
OphthalmologyPub Date : 2024-10-09DOI: 10.1016/j.ophtha.2024.08.021
Peter B Veldman, Mark A Greiner, Maria S Cortina, Anthony N Kuo, Jennifer Y Li, Darby D Miller, Roni M Shtein, Mitchell P Weikert, Jia Yin, Stephen J Kim, Joanne F Shen
{"title":"Efficacy of Amniotic Membrane Grafting for the Treatment of Chemical and Thermal Ocular Surface Injuries: A Report by the American Academy of Ophthalmology.","authors":"Peter B Veldman, Mark A Greiner, Maria S Cortina, Anthony N Kuo, Jennifer Y Li, Darby D Miller, Roni M Shtein, Mitchell P Weikert, Jia Yin, Stephen J Kim, Joanne F Shen","doi":"10.1016/j.ophtha.2024.08.021","DOIUrl":"https://doi.org/10.1016/j.ophtha.2024.08.021","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the published literature on the efficacy of amniotic membrane grafting (AMG) in the management of acute chemical and thermal ocular surface burns with respect to the rate of corneal re-epithelialization and improvement of visual acuity or corneal clarity.</p><p><strong>Methods: </strong>Literature searches were conducted in the PubMed database in May 2023 and updated in January 2024 and were limited to the English language without date restrictions. The searches yielded 474 citations; 58 were reviewed in full text, and 9 met the inclusion criteria. Four studies were rated level II, and 5 studies were rated level III. This assessment focuses on 3 level II articles that provided consistent primary and secondary outcomes but demonstrated suboptimal study design with respect to power calculations and lacked a priori sample-size calculations.</p><p><strong>Results: </strong>Amniotic membrane grafting significantly improved corneal re-epithelialization compared with medical therapy alone in eyes with moderate-grade burns. For severely burned eyes, AMG demonstrated no advantage over medical therapy. Additionally, AMG demonstrated no significant advantage over medical therapy for improved visual acuity or corneal clarity for moderate or severe ocular surface burns.</p><p><strong>Conclusions: </strong>The best available level II evidence suggests that AMG in the setting of acute ocular surface burns has efficacy in hastening re-epithelialization in moderate burns. As an adjuvant to medical therapy, it did not demonstrate a benefit in improving re-epithelialization in severe burns or visual acuity or corneal clarity in either moderate or severe burns.</p><p><strong>Financial disclosure(s): </strong>Proprietary or commercial disclosure may be found after the references.</p>","PeriodicalId":19533,"journal":{"name":"Ophthalmology","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
OphthalmologyPub Date : 2024-10-09DOI: 10.1016/j.ophtha.2024.08.010
James Morris, Jonathan Rossiter
{"title":"Case Illustrating the Visual Field Effects of a Migraine Aura.","authors":"James Morris, Jonathan Rossiter","doi":"10.1016/j.ophtha.2024.08.010","DOIUrl":"https://doi.org/10.1016/j.ophtha.2024.08.010","url":null,"abstract":"","PeriodicalId":19533,"journal":{"name":"Ophthalmology","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
OphthalmologyPub Date : 2024-10-09DOI: 10.1016/j.ophtha.2024.09.005
Anupam K Garg, Amanda D Henderson, Jacob G Light
{"title":"Unilateral Optic Disc Edema due to Traumatic Vitreopapillary Traction.","authors":"Anupam K Garg, Amanda D Henderson, Jacob G Light","doi":"10.1016/j.ophtha.2024.09.005","DOIUrl":"https://doi.org/10.1016/j.ophtha.2024.09.005","url":null,"abstract":"","PeriodicalId":19533,"journal":{"name":"Ophthalmology","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}