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Decrease of intraocular pressure after fat-removal orbital decompression in Graves disease.

Pierre-Yves R Robert1, Mauro Rivas, Philippe Camezind

  • 1Department of Ophthalmology, CHU Dupuytren, Limoges Cedex, France.

Ophthalmic Plastic and Reconstructive Surgery
|March 22, 2006
PubMed
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Fat removal orbital decompression effectively lowers intraocular pressure in Graves disease patients. This procedure also reduces proptosis, with outcomes sustained at six months post-surgery.

Area of Science:

  • Ophthalmology
  • Endocrinology
  • Surgical Science

Background:

  • Graves disease can cause increased intraocular pressure (IOP) and proptosis due to orbital tissue expansion.
  • Orbital decompression surgery is a treatment option for managing these complications.

Purpose of the Study:

  • To evaluate the efficacy of fat-removal orbital decompression in reducing intraocular pressure (IOP) in patients with Graves disease.
  • To assess the impact of this procedure on proptosis.

Main Methods:

  • A cohort study involving 64 eyes from 39 Graves disease patients (13 male, 36 female; mean age 52.5 years).
  • Patients underwent fat-removal orbital decompression.
  • Intraocular pressure and proptosis were measured pre-operatively and at 1 week and 6 months post-operatively.

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Main Results:

  • Mean intraocular pressure decreased significantly from 19.3 mmHg pre-surgery to 17.0 mmHg at 1 week and 15.9 mmHg at 6 months (p<0.001).
  • Mean proptosis reduced from 24.3 mm to 19.9 mm at both 1 week and 6 months (p<0.01).
  • The reduction in IOP did not correlate with the volume of resected orbital fat or the degree of proptosis reduction.

Conclusions:

  • Fat-removal orbital decompression is an effective surgical intervention for lowering intraocular pressure in patients with Graves disease.
  • The procedure also successfully reduces proptosis.
  • The degree of IOP reduction is independent of the amount of fat removed or proptosis improvement.