Ocular Pressure Patterns in the Valsalva Maneuver

Intraocular pressure changes under an atmospheric pressure spectrum in a multiplace hyperbaric chamber

“…This finding hints at IOP being related to the time during which the eye is subjected to environmental pressure changes. Our findings are consistent with the literature, even though the behavior of IOP is still being studied ( 17 ) . Other studies reported comparable results, in which partial oxygen pressure, humidity, and temperature were constant inside the chamber, but the atmospheric pressure reached a maximum of 2.5 ATA, with the participants breathing 100% oxygen ( 18 ) .…”

Intraocular pressure changes under an atmospheric pressure spectrum in a multiplace hyperbaric chamber

“…This finding hints at IOP being related to the time during which the eye is subjected to environmental pressure changes. Our findings are consistent with the literature, even though the behavior of IOP is still being studied ( 17 ) . Other studies reported comparable results, in which partial oxygen pressure, humidity, and temperature were constant inside the chamber, but the atmospheric pressure reached a maximum of 2.5 ATA, with the participants breathing 100% oxygen ( 18 ) .…”

Yoga can be dangerous glaucomatous visual field defect worsening due to postural yoga

“…These findings agree with a recent study (including 75 experienced yoga practitioners) that recorded a uniform twofold increase in the IOP during sirsasana, which was maintained during the posture and returned to near baseline level immediately after resuming a sitting posture 6. Increased IOP has been explained with raised episcleral venous pressure1 or increased choroidal volume by vascular engorgement 8 9…”

Intraocular pressure fluctuation during resistance exercise

“…In their investigation of wind instrument players, Schumann et al 31 measured uveal volume with ultrasound during play and documented an increase in uveal volume. Further evidence that the Valsalva manoeuvre was involved in the present study is the concomitant increase in DIA during exercise 40 41. Similarly, Dimsdale and Nelesen reported a French horn player whose DIA rose in tandem with the frequency of the note he played 42…”

Intraocular pressure changes under an atmospheric pressure spectrum in a multiplace hyperbaric chamber

“…This finding hints at IOP being related to the time during which the eye is subjected to environmental pressure changes. Our findings are consistent with the literature, even though the behavior of IOP is still being studied ( 17 ) . Other studies reported comparable results, in which partial oxygen pressure, humidity, and temperature were constant inside the chamber, but the atmospheric pressure reached a maximum of 2.5 ATA, with the participants breathing 100% oxygen ( 18 ) .…”

Yoga can be dangerous glaucomatous visual field defect worsening due to postural yoga

“…These findings agree with a recent study (including 75 experienced yoga practitioners) that recorded a uniform twofold increase in the IOP during sirsasana, which was maintained during the posture and returned to near baseline level immediately after resuming a sitting posture 6. Increased IOP has been explained with raised episcleral venous pressure1 or increased choroidal volume by vascular engorgement 8 9…”

Intraocular pressure fluctuation during resistance exercise

“…In their investigation of wind instrument players, Schumann et al 31 measured uveal volume with ultrasound during play and documented an increase in uveal volume. Further evidence that the Valsalva manoeuvre was involved in the present study is the concomitant increase in DIA during exercise 40 41. Similarly, Dimsdale and Nelesen reported a French horn player whose DIA rose in tandem with the frequency of the note he played 42…”

Intraocular pressure changes under an atmospheric pressure spectrum in a multiplace hyperbaric chamber

“…This finding hints at IOP being related to the time during which the eye is subjected to environmental pressure changes. Our findings are consistent with the literature, even though the behavior of IOP is still being studied ( 17 ) . Other studies reported comparable results, in which partial oxygen pressure, humidity, and temperature were constant inside the chamber, but the atmospheric pressure reached a maximum of 2.5 ATA, with the participants breathing 100% oxygen ( 18 ) .…”

Yoga can be dangerous glaucomatous visual field defect worsening due to postural yoga

“…These findings agree with a recent study (including 75 experienced yoga practitioners) that recorded a uniform twofold increase in the IOP during sirsasana, which was maintained during the posture and returned to near baseline level immediately after resuming a sitting posture 6. Increased IOP has been explained with raised episcleral venous pressure1 or increased choroidal volume by vascular engorgement 8 9…”

Intraocular pressure fluctuation during resistance exercise

“…In their investigation of wind instrument players, Schumann et al 31 measured uveal volume with ultrasound during play and documented an increase in uveal volume. Further evidence that the Valsalva manoeuvre was involved in the present study is the concomitant increase in DIA during exercise 40 41. Similarly, Dimsdale and Nelesen reported a French horn player whose DIA rose in tandem with the frequency of the note he played 42…”