Comparison of one-year real-world outcomes between red (670 nm) subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment-naïve diabetic macular edema

Purpose: To evaluate the treatment outcomes of subthreshold micropulse laser (SMPL) with a wavelength of 670 nm (red) for treatment-naïve diabetic macular edema (DME). Methods: A retrospective observational study which included 42 eyes in 34 patients diagnosed with treatment-naïve DME was conducted....

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Main Authors: Wataru Kikushima, Yukiko Furuhata, Taiyo Shijo, Mizuki Matsumoto, Yoichi Sakurada, Daphne Viel Tsuru, Kenji Kashiwagi
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Photodiagnosis and Photodynamic Therapy
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Online Access:http://www.sciencedirect.com/science/article/pii/S1572100024004666
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author Wataru Kikushima
Yukiko Furuhata
Taiyo Shijo
Mizuki Matsumoto
Yoichi Sakurada
Daphne Viel Tsuru
Kenji Kashiwagi
author_facet Wataru Kikushima
Yukiko Furuhata
Taiyo Shijo
Mizuki Matsumoto
Yoichi Sakurada
Daphne Viel Tsuru
Kenji Kashiwagi
author_sort Wataru Kikushima
collection DOAJ
description Purpose: To evaluate the treatment outcomes of subthreshold micropulse laser (SMPL) with a wavelength of 670 nm (red) for treatment-naïve diabetic macular edema (DME). Methods: A retrospective observational study which included 42 eyes in 34 patients diagnosed with treatment-naïve DME was conducted. Twenty-one eyes underwent red SMPL and the other 21 eyes underwent intravitreal injection of aflibercept (IVA) as initial treatment and were followed up for 12 months. Best-corrected visual acuity (BCVA), central retinal thickness (CRT) on optical coherence tomography (OCT), vessel density (VD), and foveal avascular zone area on OCT angiography (OCTA) were measured and compared between the two groups. Results: In the red SMPL group, the mean BCVA slightly improved from 0.29 ± 0.28 at baseline to 0.22 ± 0.29 at 12 months (p = 0.18), while the mean CRT significantly decreased from 472 ± 200 µm at baseline to 320 ± 136 µm at 12 months (p = 0.003). At 12 months from baseline, the mean change in BCVA and CRT were similar between the red SMPL and IVA groups (p = 0.79 and p = 0.31, respectively). No significant change was detected in OCTA parameters except for VD at the nasal section in the red SMPL group. Conclusion: Red SMPL for treatment-naïve DME maintained BCVA and significantly reduced CRT at 12 months. These treatment outcomes were equivalent to IVA in real-world settings, which tend to be inferior to clinical trials.
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publishDate 2025-02-01
publisher Elsevier
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series Photodiagnosis and Photodynamic Therapy
spelling doaj-art-762c9392b04a42638583af62274a0c662025-02-01T04:11:41ZengElsevierPhotodiagnosis and Photodynamic Therapy1572-10002025-02-0151104430Comparison of one-year real-world outcomes between red (670 nm) subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment-naïve diabetic macular edemaWataru Kikushima0Yukiko Furuhata1Taiyo Shijo2Mizuki Matsumoto3Yoichi Sakurada4Daphne Viel Tsuru5Kenji Kashiwagi6Corresponding author.; Department of Ophthalmology, University of Yamanashi, Shimokato 1110, Chuo, Yamanashi Prefecture, JapanDepartment of Ophthalmology, University of Yamanashi, Shimokato 1110, Chuo, Yamanashi Prefecture, JapanDepartment of Ophthalmology, University of Yamanashi, Shimokato 1110, Chuo, Yamanashi Prefecture, JapanDepartment of Ophthalmology, University of Yamanashi, Shimokato 1110, Chuo, Yamanashi Prefecture, JapanDepartment of Ophthalmology, University of Yamanashi, Shimokato 1110, Chuo, Yamanashi Prefecture, JapanDepartment of Ophthalmology, University of Yamanashi, Shimokato 1110, Chuo, Yamanashi Prefecture, JapanDepartment of Ophthalmology, University of Yamanashi, Shimokato 1110, Chuo, Yamanashi Prefecture, JapanPurpose: To evaluate the treatment outcomes of subthreshold micropulse laser (SMPL) with a wavelength of 670 nm (red) for treatment-naïve diabetic macular edema (DME). Methods: A retrospective observational study which included 42 eyes in 34 patients diagnosed with treatment-naïve DME was conducted. Twenty-one eyes underwent red SMPL and the other 21 eyes underwent intravitreal injection of aflibercept (IVA) as initial treatment and were followed up for 12 months. Best-corrected visual acuity (BCVA), central retinal thickness (CRT) on optical coherence tomography (OCT), vessel density (VD), and foveal avascular zone area on OCT angiography (OCTA) were measured and compared between the two groups. Results: In the red SMPL group, the mean BCVA slightly improved from 0.29 ± 0.28 at baseline to 0.22 ± 0.29 at 12 months (p = 0.18), while the mean CRT significantly decreased from 472 ± 200 µm at baseline to 320 ± 136 µm at 12 months (p = 0.003). At 12 months from baseline, the mean change in BCVA and CRT were similar between the red SMPL and IVA groups (p = 0.79 and p = 0.31, respectively). No significant change was detected in OCTA parameters except for VD at the nasal section in the red SMPL group. Conclusion: Red SMPL for treatment-naïve DME maintained BCVA and significantly reduced CRT at 12 months. These treatment outcomes were equivalent to IVA in real-world settings, which tend to be inferior to clinical trials.http://www.sciencedirect.com/science/article/pii/S1572100024004666Treatment-naïve DMERed SMPLAnti-VEGF agentaflibercept, OCTA
spellingShingle Wataru Kikushima
Yukiko Furuhata
Taiyo Shijo
Mizuki Matsumoto
Yoichi Sakurada
Daphne Viel Tsuru
Kenji Kashiwagi
Comparison of one-year real-world outcomes between red (670 nm) subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment-naïve diabetic macular edema
Photodiagnosis and Photodynamic Therapy
Treatment-naïve DME
Red SMPL
Anti-VEGF agent
aflibercept, OCTA
title Comparison of one-year real-world outcomes between red (670 nm) subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment-naïve diabetic macular edema
title_full Comparison of one-year real-world outcomes between red (670 nm) subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment-naïve diabetic macular edema
title_fullStr Comparison of one-year real-world outcomes between red (670 nm) subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment-naïve diabetic macular edema
title_full_unstemmed Comparison of one-year real-world outcomes between red (670 nm) subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment-naïve diabetic macular edema
title_short Comparison of one-year real-world outcomes between red (670 nm) subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment-naïve diabetic macular edema
title_sort comparison of one year real world outcomes between red 670 nm subthreshold micropulse laser treatment and intravitreal aflibercept injection for treatment naive diabetic macular edema
topic Treatment-naïve DME
Red SMPL
Anti-VEGF agent
aflibercept, OCTA
url http://www.sciencedirect.com/science/article/pii/S1572100024004666
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