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. 2023 May;8(1):e001203.
doi: 10.1136/bmjophth-2022-001203.

Role of sleep-disordered breathing in age-related macular degeneration

Wendy Ying Fang  1   2   3 , Palaniraj Rama Raj  1   4 , Zhichao Wu  1   2 , Carla Abbott  1   2 , Chi D Luu  1   2 , Matthew Naughton  3   5 , Robyn H Guymer  6   2
Affiliations

Role of sleep-disordered breathing in age-related macular degeneration

Wendy Ying Fang et al. BMJ Open Ophthalmol. 2023 May.

Abstract

Aims: To examine the association between obstructive sleep apnoea (OSA) and age-related macular degeneration (AMD), and the subphenotype of AMD with reticular pseudodrusen (RPD).

Methods: Case-control study with 351 participants (211 AMD and 140 controls) using the Epworth Sleepiness Scale (ESS) and the STOP-BANG Questionnaire (SBQ) validated sleep questionnaires. Participant risk of having moderate-to-severe OSA was determined using a binary risk scale based on the ESS and SBQ combined and an ordinal risk scale based on the SBQ. A prior diagnosis of OSA and whether receiving assisted breathing treatment was also ascertained. Retinal imaging allowed AMD and RPD determination.

Results: Higher risk of moderate-to-severe OSA according to the binary and ordinal scales was not associated with the presence of AMD (p≥0.519) nor AMD with RPD (p≥0.551). Per point increase in ESS or SBQ questionnaire score was also not associated with AMD nor AMD with RPD (p≥0.252). However, being on assisted breathing treatment for diagnosed OSA was significantly associated with a higher likelihood of having AMD with RPD, but not all AMD, (OR 3.70; p=0.042 and OR 2.70; p=0.149, respectively), when compared with those without diagnosed OSA on treatment.

Conclusions: Formally diagnosed OSA undergoing treatment, increased the likelihood of having AMD with RPD, but not overall AMD compared with those who were not undergoing treatment. Risk-based OSA questionnaires showed no difference in risk for all AMD or AMD with RPD. Future research, using formal sleep studies could further explore the potential role of nocturnal hypoxia in AMD.

Keywords: Macula; Retina.

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Conflict of interest statement

Competing interests: None declared.

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