In some embodiments, a magnifier defines a longitudinal axis A. The magnifier includes an arm with a distal end and a proximal end. A magnifying pane is located at the distal end and an engagement member is located at the proximal end. In various embodiments, the arm includes a distal segment, a mid segment, and a proximal segment. The distal segment is generally linear having a length L1 projected onto the longitudinal axis and is angled about 45 degrees relative to the longitudinal axis A. The mid segment is generally concave having a length L2 projected onto the longitudinal axis A. The proximal segment that is curved having a length L3 projected onto the longitudinal axis A and is convergent relative to the longitudinal axis A.