The Ideal Nasion in Chinese: A Preference Analysis of the General Population.

Augmentation rhinoplasty has gained popularity in China in the past decades and nasion profile is a key variable in aesthetic outcomes. The nasion is the deepest portion of the nasofrontal groove and its aesthetic preferences vary between different ethnic groups. At the time of this writing, there is limited research about ideal nasion measurements in the Chinese population. Therefore, we conducted an online survey of plastic surgeons and the public through social media. Participants were asked to rank nasion images according to their preferences. Images were created from a 3-dimensional scan of a Chinese Han female and modified to show various dimensions of nasion height, position, and forehead height. Nasion preferences were compared by age, sex, ethnicity, occupation, and whether had a history of plastic surgery. There were 777 respondents, including 461 (59.3%) women and 74 (9.5%) plastic surgeons. Nasion height of 8 and 10 mm ranked highest among all demographic groups. All respondents preferred nasion position to be level with the center of the pupil and forehead height of 4 mm above the nasion. Our study showed that the ideal Chinese nasion is in line with baseline ethnic characteristics. Therefore, plastic surgeons must be aware of these nasion preferences to guide preoperative discussions and achieve satisfactory outcomes.