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What's the scientific opinion on blue blockers for prescription eyeglasses? There are some claims that suggest the health benefits are over stated. But my optometrist continues to recommend them given my profession and exposure to blue light.

Anecdotally, it appears it has helped but not sure if it's related to other factors.

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I think it's been debunked and they provide no benefit. Check out https://youtu.be/NkJY9bgLyBE. That includes interviews with and MD who's high up in the American Academy of Opthalmology. At one point it's pointed out that you get orders of magnitude more blue light from the sky than any screen and humans have been encountering the sky forever.

I saw a study which said you can get the same effect by using clear glass and telling people it absorbs the important wavelengths. Also that blue light deprivation leads to depression in animal models. These kinds of things are hard to double blind for obvious reasons, but ruling out psychosomatic causes is really difficult.

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