We started collecting the layout stickers for different lenses to overlay on a patient's frame, to make sure that any given PAL would actually fit in a frame where the patient liked to wear them. Looking between the ECP and CD lenses, you can overlap them, and see that the difference between distance and near is at most, only 2mm different. How then can reps, and my OLA Progressive Identifier say that the ECP needs 18mm, and the CD 14mm?
Am I just being a dummy?
Thanks
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