Cosmetic Orbital Fat Decompression
Author: Kihei Yoshida
Base Hospital / Institution: Oculofacial Clinic Group
ePoster presentation
Abstract ID: 24-318
Purpose
Fat decompression is commonly performed for thyroid eye disease (TED), but there are few reports of cosmetic procedures for congenital protrusion. This is the first report describing the results of cosmetic orbital fat decompression for congenital eye protrusion.
Methods
Twenty-three patients underwent fat decompression of both eyes and were followed up for at least 3 months from 2022 to 2024 and evaluated retrospectively. Patients with TED and orbital bone decompression cases were excluded. The technique involved removal of the posterior part of deep orbital fat, including within the muscle cone, through a transconjunctival incision. Best corrected visual acuity (BCVA), Hertel measurement, and fusion image area (FIA) measured by binocular single vision test were evaluated at baseline and 1 and 3 months. The sum of the FIA in 4 directions (0°, 90°, 180°, and 270°) divided by 4. Preoperative refraction, amount of removed fat and complications were also recorded. The paired samples t-test was used to compare the parameters before and after treatment.
Results
Among the 23 patients, 10 were male and 13 were female. Mean age was 30.30 ± 7.94 years. The mean BCVA at baseline and at 1 and 3 months were -0.060 ± 0.036 logMAR, -0.050 ± 0.048 logMAR, and -0.060 ± 0.036 logMAR, respectively, which were not statistically significant both pre and 1 month (P=0.62) and pre and 3 months (P=0.74). The mean refraction was -4.99 ± 4.35 diopters. One patient (4.35%) was emmetropic, the other 22 patients (95.65%) were myopic. The mean Hertel measurement dropped from 18.93 mm to 16.73 mm in 3 months. The mean FIA at baseline and at 1 and 3 months were 49.84 ± 0.76°, 48.32 ± 3.93°, 48.97 ± 2.77°. It was statistically significant between pre and 1 month (P=0.049), but not significant between pre and 3 months (P=0.069). The mean amount of fat removed was 3.04 ± 1.04 ml. No postoperative visual or visual field deficits were observed.
Conclusion
Orbital fat decompression for congenital eye protrusion is a safe and effective procedure. In addition, a majority of patients with congenital exophthalmos were predominantly myopic.
Additional Authors
| First name | Last name | Base Hospital / Institution |
|---|---|---|
| Tomoyuki | Kashima | Oculofacial Clinic Group |
| Ryo | Kikuchi | Oculofacial Clinic Group |
