5 Key Takeaways

• 1

  Sleeping with the head elevated on multiple pillows may worsen intraocular pressure control in glaucoma patients.

• 2

  The study found that head elevation is associated with higher nocturnal intraocular pressure and greater 24-hour fluctuations.

• 3

  On average, intraocular pressure increased by 1.6 mm Hg when patients slept with their heads elevated.

• 4

  Elevated head posture significantly reduced ocular perfusion pressure, a marker for ocular blood flow.

• 5

  The researchers suggest that neck flexion from pillow elevation may impair venous drainage, affecting aqueous humor outflow.