: (i) placing the eyeglasses for imaging; (ii) acquiring and displaying an image of the eyeglasses using a short focal length imaging device; (iii) calculating and displaying an editable outline for each eyepiece of the eyeglasses, such that the editable outline can be compared to a respective eyepiece of the image; (iv) calculating supplemental locations associated with the outline for manufacturing holes and/or slots that anchor clip-on parts that include at least bridge and legs; 