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Eye strain: Do you really need blue light-filtering lenses for your glasses?

With many of us glued to เกม slot screens day in and day out, you might have already read plenty about the impact blue light has on your eyes – how it can give you digital eye strain, disrupt your sleep rhythms and cause skin to age prematurely because of UVA exposure.

So we’re guessing when you were getting new prescription glasses, it wasn’t hard for your optician to upsell blue light-filtering lenses. After all, it seems like a no-brainer to say “yes”.

But do you actually need these special lenses, which cost several hundreds of dollars? It would seem that’s not the case.

The American Academy of Ophthalmology (AAO), for instance, has noted on its website that it does not recommend the lenses “because of the lack of scientific evidence that blue light is damaging to the eyes”.

Dr Foo Li Lian, an associate consultant with the Singapore National Eye Centre’s (SNEC) Myopia Centre, also held the same view: “Currently, there is no concrete evidence in the medical literature to suggest any benefit for the eye from the blocking of blue light”.

A study on 120 participants, published this February in the American Journal Of Ophthalmology, further supported that stance. In it, the blue light-blocking lenses were not found to “alter signs or symptoms of eye strain with computer use relative to standard clear lenses” – even after the participants had completed a two-hour computer task.