I have an eye condition which means I want to block blue light from entering my eyes but in particular blue/violet light (below 450nm). Allowing in some blue/green (above 450nm) would be OK.
I see orange, amber, yellow and even brown lenses described as 'blue blocking' but can find no info on which of these clours will block the shorter blue/violet wavelengths most effectively. Is the colour the most important factor here or is it the depth of the tint or something else?
Thanks.
Read more: What colour lens will most effectively block visible violet light (wavelengths 450nm and shorter)?