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Related Experiment Video

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Head Elevation and Intraocular Pressure in Glaucoma.

Ji-Hye Park1, Ki Tae Nam, Chungkwon Yoo

  • 1*MD, PhD †MD Department of Ophthalmology, Korea University College of Medicine, Seoul, Republic of Korea (all authors).

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|May 28, 2016
PubMed
Summary
This summary is machine-generated.

Elevating the head of the bed by 30 degrees significantly lowers intraocular pressure (IOP) in open-angle glaucoma (OAG) patients. However, using multiple pillows for head elevation does not significantly reduce IOP and may even increase it in some glaucoma patients.

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Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Intraocular Pressure Management

Background:

  • Open-angle glaucoma (OAG) is a leading cause of irreversible blindness worldwide.
  • Elevating the head of the bed is a common non-pharmacological intervention to manage intraocular pressure (IOP).
  • The optimal method for head elevation to reduce IOP in OAG patients remains unclear.

Purpose of the Study:

  • To investigate the differential effects of two head elevation methods on intraocular pressure (IOP) in patients with open-angle glaucoma (OAG).
  • To compare the efficacy of bed head elevation (BHE) versus multiple pillows (MP) in reducing IOP in the supine position.

Main Methods:

  • A prospective observational study involving 71 OAG patients.
  • Intraocular pressure (IOP) was measured in supine positions: head flat, head 30-degree up via BHE, and head 30-degree up via MP.
  • IOP measurements were taken using Tonopen AVIA after 10 minutes in each randomized position.

Main Results:

  • Bed head elevation (BHE) by 30 degrees significantly reduced mean IOP by 2.0 mmHg compared to the supine flat position (p < 0.001).
  • Using multiple pillows (MP) for 30-degree head elevation did not significantly alter mean IOP (p = 0.081), with 35.2% of patients experiencing IOP elevation.
  • No significant differences in IOP were observed between better- and worse-mean deviation eyes across all positions.

Conclusions:

  • The method of head elevation significantly influences intraocular pressure (IOP) in OAG patients.
  • A 30-degree head elevation using BHE effectively lowers IOP in the supine position.
  • Elevating the head with multiple pillows is not a reliable method for IOP reduction in OAG and may be counterproductive.