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- Title
Rickettsial retinitis: Direct bacterial infection or an immune-mediated response?
- Authors
Chawla, Rohan; Pundlik, Gadkar Amit; Chaudhry, Rama; Thakur, Chandan
- Abstract
Infectious retinitis postfebrile illness is known to be caused by chikungunya, dengue, West Nile virus, Bartonella, Lyme's disease, Rift Valley fever, rickettsia, Herpes viruses etc. Rickettsia is Gram-negative bacteria transmitted by arthropods vectors. Ocular involvement is common including conjunctivitis, keratitis, anterior uveitis, panuveitis, retinitis, retinal vascular changes, and optic nerve involvement. Retinitis lesions in rickettsia can occur because of an immunological response to the bacteria or because of direct invasion and proliferation of bacteria in the inner retina. We report such a case of bilateral rickettsial retinitis proven by serology which worsened on systemic steroids and responded dramatically to therapy with oral doxycycline and steroid taper. We thus believe that direct bacterial invasion plays a major role in the pathogenesis of rickettsial retinitis.
- Subjects
RETINITIS pigmentosa; CHIKUNGUNYA; LYME disease; RICKETTSIA; RICKETTSIAL diseases; DIAGNOSIS of bacterial diseases; RETINAL disease diagnosis; RICKETTSIAL disease diagnosis; ANGIOGRAPHY; ANIMALS; BACTERIAL diseases; EYE infections; RETINA; RETINAL diseases; BACTERIAL antibodies; DIAGNOSIS
- Publication
Indian Journal of Ophthalmology, 2017, Vol 65, Issue 10, p1038
- ISSN
0301-4738
- Publication type
journal article
- DOI
10.4103/ijo.IJO_369_17