Recently,  we were thrilled to be gifted with a magnifier to enlarge print for those with low vision. This is an older model designed for the visually impaired with a lighted black and white screen. The display switches from positive to negative and varies the magnification. This equipment makes it much easier to read fine print on documents or magnify anything that needs to be made larger to be seen clearly. It will be a great benefit to all of us whose vision isn't what it used to be.