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An Electroporation Method to Transform Rickettsia spp. with a Fluorescent Protein-Expressing Shuttle Vector in Tick Cell Lines
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Visual loss associated with rickettsial disease.
Rim Kahloun1, Salma Gargouri, Nesrine Abroug
1Department of Ophthalmology, Fattouma Bourguiba University Hospital, Faculty of Medicine, University of Monastir , Monastir , Tunisia and.
Ocular Immunology and Inflammation
|November 1, 2013
Summary
Rickettsial disease can cause serious vision loss due to inner retinitis and optic neuropathy. Prompt treatment with doxycycline can improve visual acuity.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Retinal Diseases
Background:
- Rickettsial diseases are a group of zoonotic infections with diverse clinical presentations.
- Ocular involvement can occur but is not well-characterized.
- Understanding these manifestations is crucial for timely diagnosis and management.
Purpose of the Study:
- To investigate and describe the ocular manifestations in patients with rickettsial disease.
- To analyze the association between ocular findings and visual loss.
- To evaluate the impact of treatment on visual outcomes.
Main Methods:
- Retrospective analysis of 16 eyes from 14 patients diagnosed with rickettsial disease.
- Ocular findings documented, including visual acuity, retinal lesions, and macular edema.
- Optical coherence tomography (OCT) used for detailed retinal assessment.
- Treatment with oral doxycycline was administered to most patients.
Main Results:
- The most frequent finding was white retinal lesions (87.5%), often associated with serous retinal detachment (78.6%).
- Optic neuropathy occurred in 43.75% of eyes.
- Initial visual acuity averaged 20/63, improving to 20/40 after a 2-week doxycycline course.
Conclusions:
- Inner retinitis, vitritis, serous retinal detachment, and optic neuropathy are common vision-threatening ocular manifestations of rickettsial disease.
- These findings underscore the importance of ophthalmologic evaluation in rickettsial infections.
- Early diagnosis and treatment are essential for visual recovery.
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