article_snippet.sent: However the problem can be remedied by using special screen filters or glasses designed to block blue light, which are available through opticians.
article_snippet.sent: The effects can be reduced by the use of protective filters or spectacles.
article_snippet.sent: I later discovered the blue glasses did not work with every type of screen, possibly because some emit different frequencies of harmful light.
article_snippet.sent: When I road-tested one of Dr Sanchez-Ramos' filters, I found my symptoms were reduced significantly on all devices, though the blue spectacles were more effective with certain screens.
article_snippet.sent: Dr Sanchez-Ramos and Dr Sanchez-Ramos colleagues are lobbying Apple, Samsung and other technology manufacturers to make She and her colleagues screens friendlier to the eye, meaning that no protective filters would be needed.
article_snippet.sent: As a result, a number of Spanish local authorities have ruled that all schools under a number of Spanish local authorities jurisdiction must use protective screen filters.
article_snippet.sent: Reticare filters are now available online and cost between €12.95 and €49, depending on the size of the screen.
highlights_snippet.sent: However the problem can be remedied by using special screen filters .
  