Sure, you can get bifocal lenses where the top is for far away and the bottom is for computer distance. But unless you hold your reading at the same distance from your eyes as your computer screen, they won't work for close up very well.
Piercing your skin with a bunch of tiny little needles, may not sound appealing at first, but do the cosmetic benefits of the dermaroller outweigh the negative? At first glance, a derma roller may appear to a miniature barbaric torture device, but it has in fact become one of the most innovative approaches to skincare treatment in years. Whilst the science behind derma roller is not impressive, the results are apparent. Perhaps not for wrinkles or signs of aging.
Many brands are silent on this aspect, but the truth is that a Derma roller is not eternal, and should only be used for a given amount of time, generally it is advisable to exchange Derma roller 2x per year, or 6 in 6 months if it is from a brand that meets all the conditions I mentioned here. Check whether you are buying from a trusted brand, or a counterfeit. 2  Check if the needles are sterilized by gamma rays. 3  Check the quality of the steel used in the needles. 4  Check if it has the FDA stamp of approval.