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Optical Coherence Tomography (OCT) Feature Identifying Niche for Dexamethasone (FIND) Intravitreal Implant in the Treatment of Anti-VEGF Slow Responders with Diabetic Macular Edema

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Open Journal of Ophthalmology 2024年第4期14卷 398-404页

作者： Ram Peddada Joshua C. Hollingsworth david redden Eric Marin Retina of Auburn & Metro-Columbus Opelika AL USA VCOM Auburn AL USA

This paper raises the question if intravitreal dexamethasone implant deserves to be utilized more effectively in a select subset of eyes with diabetic macular edema (DME). If so, what is the OCT morphology of such eyes? A retrospective consecutive case series is employed to answer these questions. Twenty consecutive eyes were studied: ten that have been treated with intravitreal anti-VEGF (Group A) injections and ten which have been treated with the steroidal implant (Group O) because they failed or were slow to respond to multiple injections of anti-VEGF medications. Specifically, 1) macular edema in the eyes were categorized for the type of OCT morphology and 2) their response to the respective treatments in terms of the resolution of the OCT morphology was determined. Results show that the OCT morphology of eyes that were in Group O predominantly (7/10) had the feature of posterior retinal leakage (subretinal fluid and large outer retinal cysts);this feature was rare in Group A (2/10). Further, each of these eyes (7/7) in Group O had a complete resolution of the macular edema after a single treatment with the dexamethasone intravitreal implant whereas neither eye with this feature (0/2) responded to the (anti-VEGF) treatment in Group A. This leads to the conclusion that there exists an OCT Feature that Identifies a Niche for Dexamethasone Intravitreal implant (FIND) in the treatment of anti-VEGF slow responders in DME. The clinical significance of the study is that selecting eyes with a priori FIND morphology on the OCT for treatment with dexamethasone implant prior to, or at the outset of, a series of anti-VEGF treatment may resolve DME promptly and lower the treatment burden for patients and cost to society.

关键词： Diabetic Macular Edema Dexamethasone Intravitreal Implant Anti-VEGF FIND OCT Morphology

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