Change in eyelid parameters after orbital decompression in thyroid-associated orbitopathy
Hong Hyun Park1, Yeoun Sook Chun1, Nam Ju Moon1
1Department of Ophthalmology, Chung-Ang University College of Medicine, Chung-Ang University Hospital, Seoul, Korea.
Eye (London, England)
|February 3, 2018
Summary
Orbital decompression surgery for thyroid-associated orbitopathy significantly reduces eyelid lateral area and lower lid length. These quantitative changes in eyelid parameters are key indicators of successful surgical outcomes.
Area of Science:
- Ophthalmology
- Plastic Surgery
- Medical Imaging
Background:
- Thyroid-associated orbitopathy (TAO) can cause significant eyelid abnormalities.
- Orbital decompression surgery is a common treatment for severe TAO.
- Quantitative assessment of eyelid changes post-surgery is crucial for evaluating outcomes.
Purpose of the Study:
- To quantitatively analyze changes in eyelid parameters after orbital decompression surgery in TAO patients.
- To utilize the PC-based Eyelid Analysis Software (EAS) for precise measurements.
- To correlate eyelid parameter changes with the degree of exophthalmos reduction.
Main Methods:
- 202 eyes from 109 TAO patients were analyzed.
- Digital photographs were taken pre- and post-surgery.
- Eyelid parameters including PBD, MRD1, MRD2, PF, lid lengths, and areas were measured using EAS.
- Exophthalmos was measured using Hertel exophthalmometry.
Main Results:
- Univariate analysis revealed associations between exophthalmos reduction and MRD2, upper/lower lid length, area, medial, and lateral areas.
- Multivariate analysis identified lower lid length and lateral area as significantly associated with exophthalmos reduction (p < 0.05).
Conclusions:
- Orbital decompression surgery in TAO patients leads to a reduction in the inferior lateral eyelid.
- Lower lid length and lateral area are key quantitative indicators of successful exophthalmos reduction post-surgery.
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