Evaluation of periocular morphology of prosthetic and contralateral eyes under different facial expressions
Author: Wanlin Fan
Base Hospital / Institution: University Hospital of Cologne
Rapid fire oral presentation
Abstract ID: 24-280
Purpose
To assess the prosthetic eye’s effect on the eye’s appearance by comparing the difference between the prosthetic eye and the contralateral eye under different expressions.
Methods
In this study, we included a total of 40 prosthetic eye wearers. These patients underwent separate facial scans utilizing a 3D imaging system under different facial expressions according to our instructions (Natural expressions: NE, smile: SM, laugh: LAU, look angry: LA, kissing mouth: KS, blowing cheeks: BW, Closed eyes: CE, open eyes wide: OEW). Subsequently, the statistical analysis will be carried out with a statistical package (SPSS 23.0; IBM SPSS Statistics, Chicago, IL). We performed a t-test on the periocular data on both sides and root mean square (RMS); a p-value less than 0.05 was regarded as a significant difference.
Results
The mean age of the 40 prosthetic eye wearers in the study was 50.4 years, 20 males and 20 females. Twenty patients lost their eyes due to disease, 17 due to accidents, and three due to congenital. The mean duration of surgery was 13.67 years; 30 were Enucleation, 3 were Evisceration, 4 were Phthisis, and 3 were Congenital microphthalmus. The mean time to first prosthetic implantation was 17.75 years, and the mean time to current prosthetic implantation was 17.39. A total of 26 parameters (26/68) showed significant differences in comparison between the two eyes with natural expression. In contrast, the different expressions showed significant differences in descending order of significance as KM (5/64), OEW (8/68), SM (9/64), BC (9/64), LAU (11/64), CE (12/53), LA (33/64). There was a statistically significant difference between NE and the rest of the expressions (LA, KM, BC, CE, OEW), except for no statistical difference with SM and LAU in symmetrical RMS.
Conclusion
The symmetry of both eyes varies with different facial expressions, and all optimistic expressions have better symmetry than natural expressions, especially SM and LAU.
Additional Authors
| First name | Last name | Base Hospital / Institution |
|---|---|---|
| Alexander | C. Rokohl | University Hospital of Cologne |
| Ludwig M. | Heindl | University Hospital of Cologne |
| University Hospital of Cologne |
