Intraretinal microvascular abnormalities (IRMA) are abnormalities of the blood vessels that supply the retina of the eye, a sign of diabetic retinopathy.[1] IRMA can be difficult to distinguish from and is likely a precursor to retinal neovascularization. One way to distinguish IRMA from retinal neovascularization is to perform fluorescein angiography. Since IRMA blood vessels are patent, unlike neovascular vessels, they do not leak, and therefore exhibit hyperfluorescence on fluorescein angiography.
IRMA is deeper in the retina than neovascularization, has blurrier edges, is more of a burgundy than a red, does not appear on the optic disc, and is usually seen after a shorter period of poorly controlled diabetes than neovascularization.
Referencesedit
^Shimouchi, Akito; Ishibazawa, Akihiro; Ishiko, Satoshi; Omae, Tsuneaki; Ro-Mase, Tomoko; Yanagi, Yasuo; Yoshida, Akitoshi (9 March 2020). "A Proposed Classification of Intraretinal Microvascular Abnormalities in Diabetic Retinopathy Following Panretinal Photocoagulation". Investigative Ophthalmology & Visual Science. 61 (3): 34. doi:10.1167/iovs.61.3.34. ISSN 1552-5783. PMC7401423. PMID 32191287. Retrieved 12 September 2022.
Further readingedit
Sorour, Osama A.; Mehta, Nihaal; Baumal, Caroline R.; Ishibazawa, Akihiro; Liu, Keke; Konstantinou, Eleni K.; Martin, Sarah; Braun, Phillip; Alibhai, A. Yasin; Arya, Malvika; Witkin, Andre J.; Duker, Jay S.; Waheed, Nadia K. (2020). "Morphological changes in intraretinal microvascular abnormalities after anti-VEGF therapy visualized on optical coherence tomography angiography". Eye and Vision. 7 (1): 29. doi:10.1186/s40662-020-00195-2. ISSN 2326-0254. PMC7262762. PMID 32514410.
Shimouchi, Akito; Ishibazawa, Akihiro; Ishiko, Satoshi; Omae, Tsuneaki; Ro-Mase, Tomoko; Yanagi, Yasuo; Yoshida, Akitoshi (March 19, 2020). "A Proposed Classification of Intraretinal Microvascular Abnormalities in Diabetic Retinopathy Following Panretinal Photocoagulation". Investigative Ophthalmology & Visual Science. 61 (3). Association for Research in Vision and Ophthalmology (ARVO): 34. doi:10.1167/iovs.61.3.34. ISSN 1552-5783. PMC7401423. PMID 32191287.
External linksedit
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intraretinal, microvascular, abnormalities, irma, abnormalities, blood, vessels, that, supply, retina, sign, diabetic, retinopathy, irma, difficult, distinguish, from, likely, precursor, retinal, neovascularization, distinguish, irma, from, retinal, neovascula. Intraretinal microvascular abnormalities IRMA are abnormalities of the blood vessels that supply the retina of the eye a sign of diabetic retinopathy 1 IRMA can be difficult to distinguish from and is likely a precursor to retinal neovascularization One way to distinguish IRMA from retinal neovascularization is to perform fluorescein angiography Since IRMA blood vessels are patent unlike neovascular vessels they do not leak and therefore exhibit hyperfluorescence on fluorescein angiography Intraretinal microvascular abnormalitiesHuman eye cross sectional retina viewSpecialtyOphthalmologyIRMA is deeper in the retina than neovascularization has blurrier edges is more of a burgundy than a red does not appear on the optic disc and is usually seen after a shorter period of poorly controlled diabetes than neovascularization References edit Shimouchi Akito Ishibazawa Akihiro Ishiko Satoshi Omae Tsuneaki Ro Mase Tomoko Yanagi Yasuo Yoshida Akitoshi 9 March 2020 A Proposed Classification of Intraretinal Microvascular Abnormalities in Diabetic Retinopathy Following Panretinal Photocoagulation Investigative Ophthalmology amp Visual Science 61 3 34 doi 10 1167 iovs 61 3 34 ISSN 1552 5783 PMC 7401423 PMID 32191287 Retrieved 12 September 2022 Further reading editSorour Osama A Mehta Nihaal Baumal Caroline R Ishibazawa Akihiro Liu Keke Konstantinou Eleni K Martin Sarah Braun Phillip Alibhai A Yasin Arya Malvika Witkin Andre J Duker Jay S Waheed Nadia K 2020 Morphological changes in intraretinal microvascular abnormalities after anti VEGF therapy visualized on optical coherence tomography angiography Eye and Vision 7 1 29 doi 10 1186 s40662 020 00195 2 ISSN 2326 0254 PMC 7262762 PMID 32514410 Shimouchi Akito Ishibazawa Akihiro Ishiko Satoshi Omae Tsuneaki Ro Mase Tomoko Yanagi Yasuo Yoshida Akitoshi March 19 2020 A Proposed Classification of Intraretinal Microvascular Abnormalities in Diabetic Retinopathy Following Panretinal Photocoagulation Investigative Ophthalmology amp Visual Science 61 3 Association for Research in Vision and Ophthalmology ARVO 34 doi 10 1167 iovs 61 3 34 ISSN 1552 5783 PMC 7401423 PMID 32191287 External links edit nbsp This article about an ophthalmic disease is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Intraretinal microvascular abnormalities amp oldid 1216140468, wikipedia, wiki, book, books, library,
