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Related Experiment Videos

Surgery for normal tension glaucoma

R A Hitchings1, J Wu, D Poinoosawmy

  • 1Moorfields Eye Hospital, London.

The British Journal of Ophthalmology
|May 1, 1995
PubMed
Summary
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Surgery for normal tension glaucoma significantly reduced intraocular pressure (IOP) by 30% long-term. This IOP reduction appeared to protect retinal function, slowing disease progression in treated eyes.

Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Surgical Interventions

Background:

  • Normal tension glaucoma (NTG) is a progressive optic neuropathy.
  • Managing NTG remains challenging due to optic nerve damage occurring despite normal intraocular pressure (IOP).

Purpose of the Study:

  • To evaluate the long-term efficacy of fistulising surgery in patients with normal tension glaucoma.
  • To assess the impact of surgical IOP reduction on the progression of retinal dysfunction.

Main Methods:

  • A cohort of 18 patients with bilateral progressive normal tension glaucoma underwent unilateral fistulising surgery.
  • Long-term follow-up (2-7 years) included IOP measurements and assessment of retinal function decline.

Main Results:

Related Experiment Videos

  • Operated eyes demonstrated an average 30% reduction in intraocular pressure (IOP).
  • A significant difference was observed in the rate and number of retinal locations with progressive functional decline compared to non-operated eyes.
  • Lowered IOP was associated with a protective effect on retinal function.

Conclusions:

  • Fistulising surgery offers a long-term IOP-lowering benefit in normal tension glaucoma.
  • Surgical reduction of IOP may play a protective role against retinal functional deterioration in NTG patients.