Shedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative Review

Abstract Background Photobiomodulation (PBM) relies on the pathophysiological mechanism whereby red to near-infrared light can target mitochondrial activity and promote ATP synthesis. Preclinical and clinical studies have shown promising results in treating intermediate age-related macular degenerat...

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Main Authors: Federico Fantaguzzi, Beatrice Tombolini, Andrea Servillo, Ilaria Zucchiatti, Riccardo Sacconi, Francesco Bandello, Giuseppe Querques
Format: Article
Language:English
Published: Adis, Springer Healthcare 2023-09-01
Series:Ophthalmology and Therapy
Subjects:
Online Access:https://doi.org/10.1007/s40123-023-00812-y
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author Federico Fantaguzzi
Beatrice Tombolini
Andrea Servillo
Ilaria Zucchiatti
Riccardo Sacconi
Francesco Bandello
Giuseppe Querques
author_facet Federico Fantaguzzi
Beatrice Tombolini
Andrea Servillo
Ilaria Zucchiatti
Riccardo Sacconi
Francesco Bandello
Giuseppe Querques
author_sort Federico Fantaguzzi
collection DOAJ
description Abstract Background Photobiomodulation (PBM) relies on the pathophysiological mechanism whereby red to near-infrared light can target mitochondrial activity and promote ATP synthesis. Preclinical and clinical studies have shown promising results in treating intermediate age-related macular degeneration (AMD), since PBM can produce photochemical reactions in endogenous retinal chromophores. Currently, PBM is approved by the Food and Drug Administration and by the European Medicines Agency for the treatment of intermediate AMD. This narrative review aimed to evaluate the available evidence on the effectiveness and safety of PBM in treating intermediate AMD. Methods A comprehensive search was conducted using the PubMed database, employing the keywords “photobiomodulation” and “age-related macular degeneration.” All English-language studies published up to June 2023 were reviewed, and the search was expanded to include relevant references from selected articles. The included publications were analyzed for this review. Results The available studies on PBM in AMD demonstrated promising but inconsistent results. PBM showed potential in improving best-corrected visual acuity (BCVA) and contrast sensitivity (CS) in patients with AMD. Some studies also suggested a reduction in AMD lesions, such as drusen volume. However, the long-term efficacy and optimal treatment parameters of PBM in AMD remained to be fully determined due to the limitations of the available studies. These included variations in irradiation techniques, wavelengths, exposure times, and treatment sessions, making it challenging to generalize the effectiveness of PBM. Furthermore, the lack of accurate classification of AMD phenotypes in the available studies hindered the understanding of which phenotypes could truly benefit from this treatment. Finally, the strength of evidence varied among studies, with limited sample sizes, unpublished results, and only three randomized sham-controlled trials. Conclusions Currently, the effectiveness of PBM in promoting drusen resorption or preventing progression to advanced forms of AMD, as observed in the cited studies, remains uncertain.
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spelling doaj.art-12262e522f03463da023ae2a4ddfd8e22023-11-12T12:08:48ZengAdis, Springer HealthcareOphthalmology and Therapy2193-82452193-65282023-09-011262903291510.1007/s40123-023-00812-yShedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative ReviewFederico Fantaguzzi0Beatrice Tombolini1Andrea Servillo2Ilaria Zucchiatti3Riccardo Sacconi4Francesco Bandello5Giuseppe Querques6School of Medicine, Vita-Salute San Raffaele UniversitySchool of Medicine, Vita-Salute San Raffaele UniversitySchool of Medicine, Vita-Salute San Raffaele UniversitySchool of Medicine, Vita-Salute San Raffaele UniversitySchool of Medicine, Vita-Salute San Raffaele UniversitySchool of Medicine, Vita-Salute San Raffaele UniversitySchool of Medicine, Vita-Salute San Raffaele UniversityAbstract Background Photobiomodulation (PBM) relies on the pathophysiological mechanism whereby red to near-infrared light can target mitochondrial activity and promote ATP synthesis. Preclinical and clinical studies have shown promising results in treating intermediate age-related macular degeneration (AMD), since PBM can produce photochemical reactions in endogenous retinal chromophores. Currently, PBM is approved by the Food and Drug Administration and by the European Medicines Agency for the treatment of intermediate AMD. This narrative review aimed to evaluate the available evidence on the effectiveness and safety of PBM in treating intermediate AMD. Methods A comprehensive search was conducted using the PubMed database, employing the keywords “photobiomodulation” and “age-related macular degeneration.” All English-language studies published up to June 2023 were reviewed, and the search was expanded to include relevant references from selected articles. The included publications were analyzed for this review. Results The available studies on PBM in AMD demonstrated promising but inconsistent results. PBM showed potential in improving best-corrected visual acuity (BCVA) and contrast sensitivity (CS) in patients with AMD. Some studies also suggested a reduction in AMD lesions, such as drusen volume. However, the long-term efficacy and optimal treatment parameters of PBM in AMD remained to be fully determined due to the limitations of the available studies. These included variations in irradiation techniques, wavelengths, exposure times, and treatment sessions, making it challenging to generalize the effectiveness of PBM. Furthermore, the lack of accurate classification of AMD phenotypes in the available studies hindered the understanding of which phenotypes could truly benefit from this treatment. Finally, the strength of evidence varied among studies, with limited sample sizes, unpublished results, and only three randomized sham-controlled trials. Conclusions Currently, the effectiveness of PBM in promoting drusen resorption or preventing progression to advanced forms of AMD, as observed in the cited studies, remains uncertain.https://doi.org/10.1007/s40123-023-00812-yAge-related macular degenerationPhotobiomodulationMitochondriaDrusenGeographic atrophy
spellingShingle Federico Fantaguzzi
Beatrice Tombolini
Andrea Servillo
Ilaria Zucchiatti
Riccardo Sacconi
Francesco Bandello
Giuseppe Querques
Shedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative Review
Ophthalmology and Therapy
Age-related macular degeneration
Photobiomodulation
Mitochondria
Drusen
Geographic atrophy
title Shedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative Review
title_full Shedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative Review
title_fullStr Shedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative Review
title_full_unstemmed Shedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative Review
title_short Shedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative Review
title_sort shedding light on photobiomodulation therapy for age related macular degeneration a narrative review
topic Age-related macular degeneration
Photobiomodulation
Mitochondria
Drusen
Geographic atrophy
url https://doi.org/10.1007/s40123-023-00812-y
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