Cannabinoids May Improve Night Vision, Study Finds

Night VisionBy ScienceDaily.com

Scientists used a variety of methods to test how tadpoles react to visual stimuli when they’ve been exposed to increased levels of exogenous or endogenous cannabinoids. Exogenous cannabinoids are artificially introduced drugs, whereas endogenous cannabinoids occur naturally in the body.

They found that, contrary to what they expected, activating cannabinoid signaling in tadpoles actually increased the activity in their retinal ganglion cells (RGCs), which are responsible for transmitting information about light detection from the eye to the brain. Previous studies found that cannabinoids typically work to reduce neurotransmission, not increase it.

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