Tag

Optical
04
Mar

Blue light exacerbates and red light counteracts negative insults to retinal ganglion cells in situ and R28 cells in vitro.

March 4, 2019
Neurochem Int. 2019 Feb 27. pii: S0197-0186(18)30627-2. doi: 10.1016/j.neuint.2019.02.018. [Epub ahead of print] Abstract Neurones are dependent on their mitochondria to produce the necessary amounts of ATP for survival. Retinal ganglion cells (RGCs) have a particularly large number of mitochondria which-unlike neurones in the brain-are exposed to visual light of 400-850 nm. Here we demonstrate that short...
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11
Aug

Blue Light, Devices, Screens and Blindness

August 11, 2018
Excerpts: Karunarathne’s lab found that blue light exposure causes retinal to trigger reactions that generate poisonous chemical molecules in photoreceptor cells. “It’s toxic. If you shine blue light on retinal, the retinal kills photoreceptor cells as the signaling molecule on the membrane dissolves,” Kasun Ratnayake, a PhD student researcher working in Karunarathne’s cellular photo chemistry...
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