Arch Craniofac Surg.  2015 Aug;16(2):53-57. 10.7181/acfs.2015.16.2.53.

Quantitative Assessment of Orbital Volume and Intraocular Pressure after Two-Wall Decompression in Thyroid Ophthalmopathy

• Park SM
• Nam SB
• Lee JW
• Song KH
• Choi SJ
• Bae YC

• KMID: 2167728
• DOI: http://doi.org/10.7181/acfs.2015.16.2.53

Abstract

BACKGROUND
Surgical outcomes after orbital wall decompression have focused on the degree of exophthalmos and intraocular pressure. The aim of this research was to evaluate intraorbital volume using computed tomography (CT) images following two-wall decompression using a combined subcilliary and endoscopic approaches.
METHODS
A retrospective review was performed for all patients who had undergone the two-wall decompression method. The pre/postoperative CT images were used to evaluate changes in intraocular volume. Intraocular pressure was evaluated using applanation tonometry. Surgical details are discussed within the body of text.
RESULTS
Two-wall decompression thru the medial wall and floor was associated with an average intraorbital volume change of 7.3 cm3, with maximal accommodation up to 13 cm3. Changes in intraocular pressures were not statistically significant.
CONCLUSION
Two-wall decompression was effective in accommodation of up to 13 cm3 of soft tissue herniation. There was no statistically significant association between changes in volume to pressure.

Keyword

Hyperthyroidism; Orbital disease; Intraocular pressure; Decompression, surgical

MeSH Terms

Decompression*
Decompression, Surgical
Exophthalmos
Humans
Hyperthyroidism
Intraocular Pressure*
Manometry
Orbit*
Orbital Diseases
Retrospective Studies
Thyroid Gland*