Climate Change and the Impact on Ocular Infectious Diseases: A Narrative Review

Abstract Climate change and global warming significantly affect the incidence and distribution of infectious ocular diseases. This narrative review explores how climate-related factors—including extreme weather events, precipitation, temperature fluctuations, humidity, wind patterns, ultraviolet rad...

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Main Authors: Yong Le Tong, Carlos Cifuentes-González, Kajal Agrawal, Fatma Shakarchi, Xin Ying Rachel Song, John S. Ji, Rupesh Agrawal
Format: Article
Language:English
Published: Adis, Springer Healthcare 2025-07-01
Series:Ophthalmology and Therapy
Subjects:
Online Access:https://doi.org/10.1007/s40123-025-01185-0
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author Yong Le Tong
Carlos Cifuentes-González
Kajal Agrawal
Fatma Shakarchi
Xin Ying Rachel Song
John S. Ji
Rupesh Agrawal
author_facet Yong Le Tong
Carlos Cifuentes-González
Kajal Agrawal
Fatma Shakarchi
Xin Ying Rachel Song
John S. Ji
Rupesh Agrawal
author_sort Yong Le Tong
collection DOAJ
description Abstract Climate change and global warming significantly affect the incidence and distribution of infectious ocular diseases. This narrative review explores how climate-related factors—including extreme weather events, precipitation, temperature fluctuations, humidity, wind patterns, ultraviolet radiation, and air pollution—can directly and indirectly influence the burden of ocular infections. By synthesizing evidence from the published literature, we examine how these environmental variables impact disease mechanisms such as pathogen survival, transmission dynamics, and host susceptibility. Increased precipitation has been associated with a higher incidence and recurrence of ocular toxoplasmosis (OT), likely due to the enhanced spread of Toxoplasma gondii oocysts through contaminated water and soil. Rainfall also creates breeding habitats for mosquitoes, facilitating the transmission of vector-borne diseases such as dengue fever and Rift Valley fever. Rising temperatures and humidity have been linked to increased rates of fungal infections, particularly fungal keratitis in tropical regions. Wind has been implicated in the airborne dispersal of pathogens, including fungal spores, T. gondii oocysts, and insect-derived particles such as moth setae, potentially contributing to OT and seasonal hyperacute panuveitis. Air pollution further exacerbates dry eye disease, which influences the vulnerability to microbial keratitis. These climate-related shifts disproportionately affect vulnerable populations—particularly those living in rural, low-income, and tropical areas. This review highlights the urgent need for further research into climate-sensitive mechanisms of ocular infections and the development of targeted adaptation strategies to mitigate their impact on global eye health.
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institution Kabale University
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spelling doaj-art-c263b2c9492b4c9fb71a3598e2fef5472025-08-20T04:01:53ZengAdis, Springer HealthcareOphthalmology and Therapy2193-82452193-65282025-07-011481695171210.1007/s40123-025-01185-0Climate Change and the Impact on Ocular Infectious Diseases: A Narrative ReviewYong Le Tong0Carlos Cifuentes-González1Kajal Agrawal2Fatma Shakarchi3Xin Ying Rachel Song4John S. Ji5Rupesh Agrawal6Yong Loo Lin School of Medicine, National University of SingaporeDepartment of Ophthalmology, National Healthcare Group Eye Institute, Tan Tock Seng HospitalLee Kong Chian School of Medicine, Nanyang Technological UniversityInternational Committee of the Red CrossDepartment of Ophthalmology, National Healthcare Group Eye Institute, Tan Tock Seng HospitalVanke School of Public Health, Tsinghua UniversityYong Loo Lin School of Medicine, National University of SingaporeAbstract Climate change and global warming significantly affect the incidence and distribution of infectious ocular diseases. This narrative review explores how climate-related factors—including extreme weather events, precipitation, temperature fluctuations, humidity, wind patterns, ultraviolet radiation, and air pollution—can directly and indirectly influence the burden of ocular infections. By synthesizing evidence from the published literature, we examine how these environmental variables impact disease mechanisms such as pathogen survival, transmission dynamics, and host susceptibility. Increased precipitation has been associated with a higher incidence and recurrence of ocular toxoplasmosis (OT), likely due to the enhanced spread of Toxoplasma gondii oocysts through contaminated water and soil. Rainfall also creates breeding habitats for mosquitoes, facilitating the transmission of vector-borne diseases such as dengue fever and Rift Valley fever. Rising temperatures and humidity have been linked to increased rates of fungal infections, particularly fungal keratitis in tropical regions. Wind has been implicated in the airborne dispersal of pathogens, including fungal spores, T. gondii oocysts, and insect-derived particles such as moth setae, potentially contributing to OT and seasonal hyperacute panuveitis. Air pollution further exacerbates dry eye disease, which influences the vulnerability to microbial keratitis. These climate-related shifts disproportionately affect vulnerable populations—particularly those living in rural, low-income, and tropical areas. This review highlights the urgent need for further research into climate-sensitive mechanisms of ocular infections and the development of targeted adaptation strategies to mitigate their impact on global eye health.https://doi.org/10.1007/s40123-025-01185-0Climate changeOphthalmologyEye infectionsUveitisOcular inflammation
spellingShingle Yong Le Tong
Carlos Cifuentes-González
Kajal Agrawal
Fatma Shakarchi
Xin Ying Rachel Song
John S. Ji
Rupesh Agrawal
Climate Change and the Impact on Ocular Infectious Diseases: A Narrative Review
Ophthalmology and Therapy
Climate change
Ophthalmology
Eye infections
Uveitis
Ocular inflammation
title Climate Change and the Impact on Ocular Infectious Diseases: A Narrative Review
title_full Climate Change and the Impact on Ocular Infectious Diseases: A Narrative Review
title_fullStr Climate Change and the Impact on Ocular Infectious Diseases: A Narrative Review
title_full_unstemmed Climate Change and the Impact on Ocular Infectious Diseases: A Narrative Review
title_short Climate Change and the Impact on Ocular Infectious Diseases: A Narrative Review
title_sort climate change and the impact on ocular infectious diseases a narrative review
topic Climate change
Ophthalmology
Eye infections
Uveitis
Ocular inflammation
url https://doi.org/10.1007/s40123-025-01185-0
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AT xinyingrachelsong climatechangeandtheimpactonocularinfectiousdiseasesanarrativereview
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