Our popular Dome Magnifier, dome magnifying glasses are unique light gathering magnifiers, that are uniquely shaped in a half circle and magnify up to 4x. Our Dome Magnifiers are maded from optical grade, highly polished, solid acrylic. This allows for a clarity that provides a distortion-free pre focused 3x – 4x magnifying power, depending on size/model chosen. The flate bottom high dome design allows a dome magnifier to glides effortlessly across a smooth reading surface and makes reading small print a pleasure and reduces eye strain. Because dome magnifiers are pre-focused you simply place the magnifier directly on the item to be viewed. Their natural bright field design allows ambient light to be drawn in from all sides and naturally illuminates your magnified area, making the dome magnifier the perfect optical tool for enhanced reading of magazines, newspapers, maps, marine/aviation charts, contracts, architecture plans, stock quotes and charts, and other reading material. They are an ideal low vision aid for the visually impaired, or those in need of simple magnification to reduce eye strain. Domes have proven to be very helpful reading aid for the visually challenged, and especially helpful to those with early macular degeneration, and myopia. Both our 3.5 and 4.5 inch Dome are large enough to magnify the entire column of most newspapers into one field of view. These are the ideal reading magnifier for anyone that loves to read.