• Do you recommend eyeglasses that filter out blue light for computer use?


    Question:

    Do you recommend eyeglasses that filter out blue light for computer use? Are there studies that demonstrate blue light filters lower the risk of ocular melanoma (cancer) and other eye problems? Or is this just a gimmick to increase the cost of lenses by $150?


    Answer:

    I know of no studies showing the effect of blue light filters on the incidence of ocular melanoma in humans. Blue light and the higher energy ultraviolet light have been shown in vitro (and in animal models) to increase the growth of melanoma cells. The amount of radiation coming from a computer has never been demonstrated to cause any ocular disease except the sensation of eye strain and dry eyes that come from decreased blinking associated with computer use. I do not recommend to my patients to use any special type of computer lens except that needed to correct refractive error (such as nearsightedness or farsightedness). Sunglasses with UV-blocking effect have been shown to decrease the incidence of periocular skin cancers, some cataracts, and macular degeneration.


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