MagniClips™ magnifiers are effective for people who need to focus at an intermediate distance, such as a computer screen, or to do crafting or needlework.
Even non-glasses wearers can wear them over their sunglasses when working or reading outside.
MagniClips™ magnifiers come in +2.00, +3.00 and +4.00n magnifications.
If you wear bifocals, choose +2.00 for an Intermediate focal distance & +3.00 for close-up bead work.
Mono-vision wearers choose +2.00 or +3.00 for intermediate focal distance and +4.00 for close up bead work."