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Updated: Jan 30, 2026

Doppler Optical Coherence Tomography of Retinal Circulation
Published on: September 18, 2012
Optical coherence tomography angiography features of retinitis post-rickettsial fever
Mahesh Shanmugam1, Vinaya Kumar Konana1, Rajesh Ramanjulu1
1Department of Vitreoretina and Ocular Oncology, Sankara Eye Hospital, Kundalahalli Gate, Varthur Main Road, Marathahalli, Bangalore, Karnataka, India.
Abstract:
The intraocular manifestations of rickettisial retinitis include retinal vasculitis, maculopathy, optic neuritis, and neurosensory detachment. Extensive leakage of dye on the fundus fluorescein angiography may obscure visualization in eyes with retinitis. We report the vascular changes in eyes with rickettsial retinitis and its response to treatment using optical coherence tomography angiography. The microvascular abnormalities we noted were, capillary drop out areas corresponding to retinitis patches, vascular loops, and pruning of vessels. The choriocapillary slabs showed signal void areas. Post-treatment there was vascular remodeling with decrease in non-perfused area, appearance of new vascular lateral branching, and appearance of collaterals.
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