Sleeping position influences glaucoma visual loss

Researchers from South Korea suggest that patients with glaucoma should avoid sleeping on one side, after showing that it may be associated with greater visual field (VF) loss in the lower-positioned eye.

The research team, led by Ki Ho Park (Seoul National University Hospital), says the findings are likely due to the effects of intraocular pressure (IOP), which increases in the supine position, especially in patients with glaucoma. Previous studies have shown that sleeping in a sideways, or lateral decubitus, position consistently leads to greater IOP in the lower-positioned eye.

Park et al studied 692 patients with primary open-angle glaucoma aged a mean of 60.6 years, of whom 510 had normal-tension glaucoma and 182 had high-tension glaucoma.

The team identified 430 (62.1%) patients with asymmetric VF loss (defined as mean deviation ≥2 dB between eyes), at a mean of –11.3 dB in the worse eye and –4.8 dB in the better eye. The mean baseline IOP was also significantly different between the worse and better eye, at 16.7 mmHg and 16.0 mmHg, respectively.

Among patients with asymmetric VF loss, 132 (30.7%) said that they preferred to sleep on their side. And among these patients, significantly more – 89 (67.4%) – preferred to sleep on the worse-eye-dependent side than preferred to sleep on the better-eye-dependent side.

Writing in the American Journal of Ophthalmology, Park and colleagues say that their findings could explain why VF loss continues to progress in glaucoma patients despite well-controlled IOP in the sitting position.

They say that the “results of the present study strongly suggest that the sleep position habitually preferred by [open-angle glaucoma] patients may be associated with greater VF loss.”

The team concludes: “In order to confirm our speculation, a prospective, long-term follow-up study will be necessary.”

Licensed from medwireNews with permission from Springer Healthcare Ltd. ©Springer Healthcare Ltd. All rights reserved. Neither of these parties endorse or recommend any commercial products, services, or equipment.

Kirsty Oswald

Written by

Kirsty Oswald

Kirsty has a B.Sc. in Human Sciences from University College London. After several years working as medical copywriter, she became a medical journalist and is now freelance. Kirsty also works part-time as an editor for a London-based charity. She is particularly interested in the social and cultural aspects of science.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Oswald, Kirsty. (2018, August 23). Sleeping position influences glaucoma visual loss. News-Medical. Retrieved on September 17, 2021 from https://www.news-medical.net/news/20140120/Sleeping-position-influences-glaucoma-visual-loss.aspx.

  • MLA

    Oswald, Kirsty. "Sleeping position influences glaucoma visual loss". News-Medical. 17 September 2021. <https://www.news-medical.net/news/20140120/Sleeping-position-influences-glaucoma-visual-loss.aspx>.

  • Chicago

    Oswald, Kirsty. "Sleeping position influences glaucoma visual loss". News-Medical. https://www.news-medical.net/news/20140120/Sleeping-position-influences-glaucoma-visual-loss.aspx. (accessed September 17, 2021).

  • Harvard

    Oswald, Kirsty. 2018. Sleeping position influences glaucoma visual loss. News-Medical, viewed 17 September 2021, https://www.news-medical.net/news/20140120/Sleeping-position-influences-glaucoma-visual-loss.aspx.

Comments

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
You might also like... ×
'Do not resuscitate' decision recorded for only 1 in 5 very sick older patients, study finds