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Blue Light FUD is an industry now. Although blue light exposure at night is detrimental due to melatonin blocking, during the day, it's important - both blue sp

Blue Light FUD is an industry now. Although blue light exposure at night is detrimental due to melatonin blocking, during the day, it's important - both blue spectrum light and brightness. The fact that we spend most of the time indoors during the day is one of the reason of the wide incidence of myopia (shortsightness). I warned LensCrafters that they may expect class action lawsuits as they call blue light "harmful" and offer coating, which reduces blue light both during the day and at night, which could be a trick to make people shortsighted to sell them prescription eyeglasses later.

Meerax 7y ago
I thought that myopia was more of a genetic inherited trait than related to time spent indoors.
- ScottBurson 7y ago
  > Multiple factors are involved in the development of myopia [18]. Both genetics and the environment play a role in the development and progression of myopia. Many epidemiological surveys have shown that excessive close-up work, a high level of education, and participation in fewer outdoor activities were important environmental risk factors for myopia [9,19–24]. Genetic factors have been proven to play a significant role in the development of myopia, and several genes are associated with high myopia [18,25–30]. -- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6261017/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6261017/
  - Meerax 7y ago
    Thanks! I'm myopic, have higher ed degrees, and work as a luthier specializing in restoration work (excessive close up work for long hours). I knew it was partly genetic looking at family history but had no idea that my everyday work was compounding the problem.
- CryptoPunk 7y ago
  Myopia has become massively more prevalent over the last century, so we know there are environmental factors that are significant contributors to risk of contraction.
- nikolay 7y ago
  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5233810/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5233810/

Meerax 7y ago

I thought that myopia was more of a genetic inherited trait than related to time spent indoors.

ScottBurson 7y ago
> Multiple factors are involved in the development of myopia [18]. Both genetics and the environment play a role in the development and progression of myopia. Many epidemiological surveys have shown that excessive close-up work, a high level of education, and participation in fewer outdoor activities were important environmental risk factors for myopia [9,19–24]. Genetic factors have been proven to play a significant role in the development of myopia, and several genes are associated with high myopia [18,25–30]. -- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6261017/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6261017/
- Meerax 7y ago
  Thanks! I'm myopic, have higher ed degrees, and work as a luthier specializing in restoration work (excessive close up work for long hours). I knew it was partly genetic looking at family history but had no idea that my everyday work was compounding the problem.
CryptoPunk 7y ago
Myopia has become massively more prevalent over the last century, so we know there are environmental factors that are significant contributors to risk of contraction.
nikolay 7y ago
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5233810/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5233810/