Glaucoma, the leading cause of irreversible blindness, is a heterogeneous group of diseases characterized by progressive loss of retinal ganglion cells (RGCs) and their axons and leads to visual loss and blindness. Risk factors for the onset and progression of glaucoma include systemic and ocular factors such as older age, lower ocular perfusion pressure, and […]
The Effects of Modulated Light on the Visual Process
INTRODUCTION Light as medicine may seem like a new concept, but scientists have known since at least the late 1800s that certain wavelengths of light in prescribed doses can be used to heal the tissue [1,2]. For the eye and vision care community, light is being used as Intense Pulsed Light Therapy (IPL) for dry […]
The effects of short duration, low level photobiomodulation on human cone function, assessed using two tests of color vision.
Abstract Purpose : The retina declines both structurally and functionally with age, with mitochondria playing a key role. Red to near-infrared (R-NIR) light in the region of λ670nm improves mitochondrial function and has been associated with improvements in color contrast sensitivity in preliminary studies of human retinal aging. This study tests the hypothesis that R-NIR light improves […]
Considerations for the Use of Photobiomodulation in the Treatment of Retinal Diseases
Abstract Photobiomodulation (PBM) refers to the beneficial effect produced from low-energy light irradiation on target cells or tissues. Increasing evidence in the literature suggests that PBM plays a positive role in the treatment of retinal diseases. However, there is great variation in the light sources and illumination parameters used in different studies, resulting in significantly […]
Effect of Photobiomodulation in Suppression of Oxidative Stress on Retinal Pigment Epithelium
Abstract As the world undergoes aging, the number of age-related diseases has increased. One of them is disease related to retinal pigment epithelium (RPE) degeneration, such as age-related macular degeneration, causing vision loss without physical damage in the ocular system. It is the leading cause of blindness, with no cure. Although the exact pathogenesis is […]
Photobiomodulation Mediates Neuroprotection against Blue Light Induced Retinal Photoreceptor Degeneration
Abstract Potent neuroprotective effects of photobiomodulation with 670 nm red light (RL) have been demonstrated in several models of retinal disease. RL improves mitochondrial metabolism, reduces retinal inflammation and oxidative cell stress, showing its ability to enhance visual function. However, the current knowledge is limited to the main hypothesis that the respiratory chain complex IV, […]