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Roy R, Chattree S, Kala U, Majumdar B, Desai J, Bhattacharya S, Sen A, Goel S, Thomas NR, Chowdhury M, Das K, Nigam E, Das D, Saurabh K. Multicolor imaging: Current clinical applications. Surv Ophthalmol 2024; 69:378-402. [PMID: 38122907 DOI: 10.1016/j.survophthal.2023.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
Multicolor (MC) imaging is an innovative pseudocolor fundus imaging modality based on confocal scanning laser ophthalmoscopy. It effectively scans the retina at different depths to create a composite image. The green reflectance image depicts the middle retinal while blue reflectance image provides images of the retinal surface. The infrared reflectance image depicts retinal structures at the level of outer retina and choroid. We systematically analyze published case reports, case series, and original articles on MC imaging where it has helped in discovering additional clinical features of retinal diseases not readily apparent on conventional color fundus photography and played a role in monitoring the response to treatment.
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Affiliation(s)
- Rupak Roy
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India.
| | - Surabhi Chattree
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | - Urvashi Kala
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | - Bristi Majumdar
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | - Janhavi Desai
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | - Sampurna Bhattacharya
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | - Ahana Sen
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | | | | | - Maitreyi Chowdhury
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | - Kalpita Das
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | - Eesh Nigam
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
| | - Debmalya Das
- Department of Vitreo Retina, Aditya Birla Sankara Nethralaya, 147, Mukundapur, E.M.Bypass, Kolkata 700099, West Bengal, India
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Sanjay S, Acharya I, Kawali A, Chitturi SP, Mahendradas P. Choroidal and central macular thickness before and after treatment in post fever retinitis. Indian J Ophthalmol 2024; 72:728-734. [PMID: 38648435 PMCID: PMC11168547 DOI: 10.4103/ijo.ijo_1557_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/11/2023] [Accepted: 11/01/2023] [Indexed: 04/25/2024] Open
Abstract
PURPOSE To study the choroidal thickness (CT) and central macular thickness (CMT) in post-fever retinitis (PFR) and their correlation with visual acuity and treatment. METHODS A retrospective, observational study of patients presenting with PFR from 2013 to 2021 and with spectral domain optical coherence tomography (SD-OCT) (Heidelberg®, SpectralisTM, Heidelberg, Germany) images were included. The CT and CMT were measured at presentation and at the final visit. The CT was measured subfoveally and at points 2000 µm superior, inferior, medial, and lateral from the fovea using the caliper tool. RESULTS Seventy-nine eyes of 65 patients were included for this study. The mean age was 39.03 (±16.00) years with female preponderance of 53.84% (n = 35). Mean follow-up duration was 30 days. Mean CT at presentation and at follow-up was 254.12 µm and 241.51 µm, respectively. CT was decreased in majority of the eyes 67.1% (n = 53) from their baseline value. Mean CMTs at presentation and final visit were 454.8 µm and 223.7 µm, respectively. Best corrected visual acuity had a positive correlation with CMT (r = 0.340; P = 0.002) and negligible correlation with CT. A significant decrease in the mean CT was noted in patients who received doxycycline either alone or in combination with a steroid as compared to those who did not receive any treatment (P < 0.001). The significance of which is unknown presently. CONCLUSION CMT has a greater role in determining the final visual outcome than CT. CT can be reduced post-treatment with no effect on vision.
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Affiliation(s)
- Srinivasan Sanjay
- Department of Uveitis and Ocular Immunology, Narayana Nethralaya, Bengaluru, India
| | - Isha Acharya
- Department of Uveitis and Ocular Immunology, Narayana Nethralaya, Bengaluru, India
| | - Ankush Kawali
- Department of Uveitis and Ocular Immunology, Narayana Nethralaya, Bengaluru, India
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Sanjay S, Gadde SGK, Kumar Yadav N, Kawali A, Gupta A, Shetty R, Mahendradas P. "Bilateral Sequential Acute Macular Neuroretinopathy in an Asian Indian Female with β Thalassemia Trait following (Corona Virus Disease) COVID-19 Vaccination and Probable Recent COVID Infection- Multimodal Imaging Study.". Ocul Immunol Inflamm 2022; 30:1222-1227. [PMID: 35050826 DOI: 10.1080/09273948.2022.2026978] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Corona virus disease (COVID-19) has been associated with a variety of ophthalmic manifestations including acute macular neuroretinopathy and paracentral middle maculopathy. Posterior segment manifestations after post COVID-19 vaccinations have been reported. CASE REPORT A 25- year-old Asian Indian female developed sequential bilateral AMN following a single dose of COVISHIELD™ vaccine. On investigations she was found to have a β thalassemia trait. Presentation started unilaterally and progressed to the other eye after a month. On clinical examination, the fundus was apparently normal in both eyes. Significant changes suggestive of AMN were seen on multimodal imaging of the posterior segment of the respective eye at the time of involvement which resolved spontaneously in due course. CONCLUSION We report a temporal association of COVID-19 vaccination and AMN.
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Affiliation(s)
- Srinivasan Sanjay
- Department of Uveitis and Ocular Immunology, Narayana Nethralaya, Bangalore, India
| | | | | | - Ankush Kawali
- Department of Uveitis and Ocular Immunology, Narayana Nethralaya, Bangalore, India
| | - Aditi Gupta
- Department of Uveitis and Ocular Immunology, Narayana Nethralaya, Bangalore, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Neuro-ophthalmology, Narayana Nethralaya, Bangalore, India
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