Ocular toxoplasmosis is the most common cause of posterior uveitis worldwide, with an estimated incidence of 8.4%. It follows infection by the ubiquitous parasite Toxoplasma gondii. The diagnosis is based on clinical examination looking for uveitis and most often retinochoroiditis. Microbiological confirmation is an element of positive diagnosis. The indications for treatment remain debated, whether for acute forms or recurrences.
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http://dx.doi.org/10.1016/j.jfo.2024.104334 | DOI Listing |
Zhong Nan Da Xue Xue Bao Yi Xue Ban
August 2024
Department of Parasitology, School of Basic Medical Sciences, Central South University, Changsha 410013.
Objectives: Toxoplasmosis is a zoonotic parasitic disease caused by (), which can lead to complications such as encephalitis and ocular toxoplasmosis. The disease becomes more severe when the host's immune system is compromised. Rhoptry proteins are major virulence factors that enable to invade host cells.
View Article and Find Full Text PDFMed J Malaysia
January 2025
Department of Ophthalmology, Saveetha Institute of Medical and Technical Sciences (Deemed to be University): SIMATS Deemed University, Chennai, Tamilnadu, India.
Ocular toxoplasmosis is the leading cause of infectious retinochoroiditis in both adults and children. It is caused by the obligate intracellular parasite, Toxoplasma gondii. It is a common cause of posterior uveitis and focal retinitis, typically seen in immunocompetent individuals as a primary infection or in immunocompromised individuals as reactivation of latent infection.
View Article and Find Full Text PDFPLoS Negl Trop Dis
January 2025
Inserm U1094, IRD UMR270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidemiology of Chronic Diseases in Tropical Zone, Institute of Epidemiology and Tropical Neurology, OmegaHealth, Limoges, France.
The protozoan Toxoplasma gondii is a ubiquitous and highly prevalent parasite that can theoretically infect all warm-blooded vertebrates. In humans, toxoplasmosis causes infections in both immunodeficient and immunocompetent patients, congenital toxoplasmosis, and ocular lesions. These manifestations have different degrees of severity.
View Article and Find Full Text PDFOphthalmic Genet
January 2025
Eye Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates.
Introduction: Round atrophic macular scars with a hyperpigmented rim in an otherwise healthy child are characteristic for prior ocular toxoplasmosis infection, the most common etiology of self-resolved retinitis in immunocompetent patients. However, a specific homozygous gene mutation (NM_148960: :c.263T>A; p.
View Article and Find Full Text PDFJ Ophthalmol
December 2024
Department of Ophthalmology, Ankara Bilkent City Hospital, Ankara, Turkey.
To evaluate the two-year fundus examination outcomes of term infants undergoing eye screening. Retrospective review of our data of term infants at a tertiary care center (Ankara Bilkent City Hospital) from October 2021 to October 2023. All screened infants underwent red reflex test and dilated posterior segment examination.
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