Quantitative and Aesthetic Analysis of Changes of the Distance Between the Eyebrows and the Eyes after "Width Reduced to Narrow" Double Eyelid Repair Surgery.

Background: Some patients will experience a change in the distance between the eyebrows and the eyes after "width reduced to narrow" double eyelid repair surgery. The objective of this study was to provide a quantitative analysis of the change in the distance between the eyebrows and the eyes of Asian women after "width reduced to narrow" double eyelid repair surgery.

Methods: Seventy-three patients who received "width reduced to narrow" double eyelid repair surgery from August 2021 to May 2024 were included for measurement and analysis of photographs taken preoperatively and postoperatively (more than 6 months after the surgical operation), and the perpendicular distance between the eyebrow down and the horizontal line of the pupil midpoint in the vertical line of the midpoint of the cornea (PTW) and margin reflex distance 1 (MRD1) were measured to analyze the change in the distance between the eyebrow and the eye before and after the surgery.

Results: A total of 73 patients were included, including 54 females (73.97%) and 19 males (26.03%). Compared with the preoperative period, the mean PTW was reduced in both the left and right eyes after surgery, and the difference was statistically significant in the preoperative and postoperative comparisons (P < 0.05). The mean PTW of the left eye was 23.68 ± 1.42 mm postoperatively, which showed a significant reduction from the preoperative distance of 24.4 ± 1.39 mm, and the difference was statistically significant (P < 0.05). The mean PTW of the right eye was 23.34 ± 1.26 mm postoperatively, which showed a significant reduction from the preoperative distance of 24.22 ± 1.47 mm, and the difference was statistically significant (P < 0.05). There were 24 cases of PTW increased (32.88%) and 49 cases of PTW reduced (67.12%) in the left eye, while there were 20 cases of PTW increased (27.40%) and 53 cases of PTW reduced (72.60%) in the right eye. As compared with the preoperative period, the MRD1 values of the left and right eyes were increased in the postoperative period, and the comparison differences between the preoperative and postoperative periods were statistically significant (P < 0.05).

Conclusions: The "width reduced to narrow" double eyelid surgery will change the muscle tension and contraction of the eyebrow-eyelid complex, so that the eyebrow will be stretched and the distance between the eyebrows and the eyes will be changed. Herein, the majority of patients had a narrowing of the distance between the eyebrows and the eyes, and a small percentage of patients had an increased or unchanged distance.

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