A measuring scale for objective evaluation of the nasal shape
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Updated: Sep 21, 2026

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference (NPD)
Published on: September 13, 2018
Abstract:
Evaluating preoperative expectations and post-operative results of the physical aspects of a rhinoplasty is a challenge. Using a graphic scale of 4 aspects of the nose--length, width, hump, and tip--can enable almost anyone to achieve a more or less objective evaluation of nasal characteristics. The scale ranges from 1, being the "nicest," to 7, being the "worst." The scales can be prepared on translucent sheets suitable for superimposing on pre- and postoperative photographs, and the differences in scores give a value to the result.
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