PBM using 670 nm combined with lower-fluence 590/790 nm exposure demonstrated clinically meaningful and statistically significant improvements in visual function, with benefits persisting up to one year.
the findings highlight that mitochondria-responsive wavelengths in the red/NIR range can drive functional benefits in retinal tissue when delivered within safe fluence windows.
This foundational study characterized mitochondrial structural/functional deficits in AMD RPE, establishing mitochondrial dysfunction as a key therapeutic target for PBM.
Red light (630-670 nm) counteracted blue light toxicity in retinal ganglion cells through enhanced ATP, increased antioxidants, and mitochondrial protection.
These findings reinforce the concept that mitochondrial-targeted photobiomodulation can partially reverse age-related retinal decline and may have implications for managing retinal aging and age-related disease such as AMD.
These results connect systemic immune modulation with retinal mitochondrial health and inflammatory load—two major contributors to age-related macular degeneration (AMD) progression.
Photobiomodulation (PBM), also known as low level laser therapy, has recently risen to the attention of the ophthalmology community as a promising new approach to treat a variety of retinal conditions including age-related macular degeneration, retinopathy of prematurity, diabetic retinopathy, Leber’s hereditary optic neuropathy, amblyopia, methanol-induced retinal damage, and possibly others.
PBM showed consistent ATP enhancement, oxidative stress reduction, and visual improvements across retinal diseases with favorable safety profiles.
Evidence is growing that photobiomodulation (PBM) can restore the function of damaged mitochondria, upregulate the production of cytoprotective factors and prevent apoptotic cell death.
Our findings further support the use of 670 nm light as an effective treatment against retinal degeneration as well as shedding light on the mechanism of protection through the increase of the mitochondrial spare respiratory capacity.
