Abstract
Purpose
To describe composite multicolour (MC) imaging features along with the monocoloured fundus reflectance images in active and resolving stages of post-fever retinitis (PFR).
Methods
Retrospective image analysis of cases of PFR who underwent dilated retinal clinical examination followed by optical coherence tomography and MC imaging.
Results
Twenty-five eyes of 18 patients diagnosed with PFR were included. There were 11 males and 7 females. Mean age of patients was 30.63 years. The retinitis lesion appeared bright white on MC image and white mainly on blue and green reflectance images during the active stages of PFR. The lesion appeared dull-grey to greyish white during the resolving stages and as dull-green in resolved cases. The active stages showed the presence of intraretinal/subretinal fluid which appeared as green colour on MC images and less green to normal during resolving stages. Hard exudates were seen as bright yellow- or orange-coloured spots on MC image during the resolving stages of the disease.
Conclusion
The different stages of PFR show different colour on multicolour image and different reflectance patterns on individual colour reflectance channels. Hence, multimodal fundus imaging with different wavelength can be helpful for differentiation of activity in PFR.
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Data availability
The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
We would like to thank our technicians, Mr Abhishek, Mr Deekshit, Mr Manjunath and Mr Madhu, for their contribution in acquiring the images and providing them to us for analysis in this study.
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RV helped in conceptualizing the study, analysing the data, interpreting the findings, writing & reviewing the manuscript. SS, MPA, AK contributed to clinical management of the patient. NKY and RS reviewed the manuscript and NR and RAM acquired the data.
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Sanjay, S., Reddy, N.G., Kawali, A. et al. Role of multicolour imaging in post-fever retinitis involving posterior pole. Int Ophthalmol 41, 3797–3804 (2021). https://doi.org/10.1007/s10792-021-01951-6
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DOI: https://doi.org/10.1007/s10792-021-01951-6