A Protective Eye Shield Reduces Limbal Strain and Its Variability During Simulated Sleep in Adults With Glaucoma

Flatau, Alison B.; Solano, Francisco; Jefferys, Joan L.; Damion, Christopher; Quigley, Harry A.

doi:10.1097/ijg.0000000000000826

Cited by 4 publications

(3 citation statements)

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“…Additionally, we showed that wearing protective eye gear prevents this large external pressure‐induced IOP increase, a finding confirmed by a similar effect described wearing a customized protective mask (Flatau et al. ).…”

Section: Discussionsupporting

confidence: 84%

“…found similar results of an increased IOP caused by pressure of a pillow, which were abolished by wearing a customized protective mask (Flatau et al. , ).…”

Section: Discussionmentioning

confidence: 63%

“…However, few studies have studied the effect of extraocular pressure on the eye and the possible subsequent increase in IOP (Flatau et al. , ; Korenfeld & Dueker ,b).…”

Section: Introductionmentioning

confidence: 99%

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Purpose To study whether a clinically significant increase in intraocular pressure (IOP) occurs during simulated sleep conditions with the subject's head turned comfortably into a pillow (the simulated sleep position) and the effect of protective glasses on any such IOP rise. Methods A specially developed electronic epipalpebral pressure (EPP) sensor was attached to an eyelid of the right eye of all participants: 11 patients with primary open‐angle glaucoma and 11 healthy volunteers. During calibration, mechanical pressure was applied to the EPP sensor taped to the lower eyelid and the IOP was measured simultaneously at the slit lamp by Goldmann applanation tonometry. The EPP was increased in a stepwise fashion to assess the relationship between EPP and IOP for each individual eye. Thereafter, EPP (with the sensor now taped to the upper eyelid) measurements were performed in the simulated sleep position, both with and without protective glasses. The EPP was determined in each individual eye, and the estimated IOP was then inferred from the established EPP/IOP relationship. Results In the simulated sleep position, the mean IOP increased by an estimated 19.6 mmHg (SD: 7.5; range 11.6–32.8; p < 0.0001) in the patient group and 28.0 mmHg (SD: 9.6; range 12.3–41.1); p < 0.0001) in the control group. When the subjects wore protective glasses, the mean estimated IOP decreased again by 16.3 mmHg (SD: 5.6; range 9.8–28.1; p < 0.0001) in the patient group and 25.1 mmHg (SD: 8.2; range 11.7–38.3; p = <0.0001) in the control group. Conclusion Turning the head into a pillow gave a large and clinically significant increase in the estimated IOP in the simulated sleep position. With protective glasses, however, the increase in estimated IOP was almost absent. Therefore, protective shielding of the eyes during sleep may be a treatment option in glaucoma.

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Section: Discussionsupporting

confidence: 84%

“…found similar results of an increased IOP caused by pressure of a pillow, which were abolished by wearing a customized protective mask (Flatau et al. , ).…”

Section: Discussionmentioning

confidence: 63%