Evidence map›Paper›PMID 40802083›Full record

ArticleInternational ophthalmology2025

Unveiling the limitations of OCT-based classification in diabetic epiretinal membranes: a call for integrative vascular and structural assessment with OCT-A.

Umay Güvenç, Güner Üney, Nurten Ünlü, Özlem Candan, Gözde Orman

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Article in International ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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3 · Its place in the literature

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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Umay GüvençDepartment of Ophthalmology, Ankara Training and Research Hospital, Hacettepe Neighborhood, Ulucanlar Street No: 89, Altındağ District, 06230, Altındağ, Ankara, Türkiye. umay.guvenc@gmail.com.
Güner ÜneyDepartment of Ophthalmology, Ankara Training and Research Hospital, Hacettepe Neighborhood, Ulucanlar Street No: 89, Altındağ District, 06230, Altındağ, Ankara, Türkiye.
Nurten ÜnlüDepartment of Ophthalmology, Ankara Training and Research Hospital, Hacettepe Neighborhood, Ulucanlar Street No: 89, Altındağ District, 06230, Altındağ, Ankara, Türkiye.
Özlem CandanDepartment of Ophthalmology, Ankara Training and Research Hospital, Hacettepe Neighborhood, Ulucanlar Street No: 89, Altındağ District, 06230, Altındağ, Ankara, Türkiye.
Gözde OrmanDepartment of Ophthalmology, Ankara Training and Research Hospital, Hacettepe Neighborhood, Ulucanlar Street No: 89, Altındağ District, 06230, Altındağ, Ankara, Türkiye.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeGovetto's optical coherence tomography (OCT)-based staging system is widely used for idiopathic epiretinal membranes (ERMs), but its applicability to diabetic ERMs remains unclear. Given the distinct microvascular pathology in diabetes, this study evaluated the system's applicability in diabetic ERMs and compared structural and vascular features of diabetic and idiopathic ERMs using OCT and OCT-angiography (OCT-A).

methodsThis retrospective study included 142 eyes with diabetic ERM, idiopathic ERM, and healthy controls. All subjects underwent comprehensive ophthalmic examination, OCT, and OCT-A imaging. ERMs were staged using Govetto et al.'s classification. Correlations between visual acuity (VA), ERM stage, OCT metrics, and OCT-A parameters were analyzed. The macular vessel density ratio (MVR) was also calculated.

resultsEctopic inner foveal layer (EIFL), microcystoid changes, and retinal layer thicknesses were comparable across stages, with EIFL increasing as stages advanced in both groups. EIFL and outer foveal thickness showed no significant group differences, but EIFL was consistently thinner in diabetic cases. Diabetic ERMs had lower vessel densities (VD) and significantly reduced choriocapillaris flow area. Only in the diabetic group were strong correlations observed between outer retinal layer values and VD, as well as between VA, choriocapillaris flow, retinal thickness, and deep macular VD.

conclusionAlthough Govetto's OCT-based classification aligns with structural progression in both ERM types, it does not reflect the vascular alterations seen in diabetic ERMs. These findings suggest that structural staging alone may be insufficient in diabetic cases. Awareness of vascular differences and integration of OCT-A parameters may improve interpretation and guide prognosis in diabetic ERMs.

Indexed as

Diabetic RetinopathyEpiretinal MembraneFluorescein AngiographyRetinal VesselsTomography, Optical CoherenceAgedFemaleFollow-Up StudiesFundus OculiHumansMaleMiddle AgedRetrospective StudiesVisual AcuityChoriocapillaris flow areaDiabetic epiretinal membranesMacula vessel density ratioOCT-based staging systemOptical coherence tomography angiography

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.