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. 2022 Oct 3;19(19):12637. doi: 10.3390/ijerph191912637

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(A–C) A 54-year-old man with an apnea hypopnea index (AHI) of 54.8/h received nasal continuous positive airway pressure (CPAP) treatment starting 2 October 2013. Peripapillary retinal nerve fiber layer (pRNFL), total retinal (TR), and choroidal thickness measurements were taken on 1 October 2013 (baseline), on 14 January 2013 (after 3 months of CPAP) and on 2 October 2014 (after 12 months of CPAP). Following CPAP, AHI decreased to 6.1/h. (A) pRNFL thickness in the right eye (top: baseline, bottom: global RNFL thickness over 3 visits). Note the overall increasing trend of the curve. (B) TR thickness 12 months after CPAP treatment vs. baseline. Note the retinal thickening in the last EDTRS subfield. (C) Choroidal thickness in the right eye at the levels temporal, subfoveal, and nasal (top: baseline, middle: after 3 months of CPAP, bottom: after 12 months of CPAP).

(A–C) A 54-year-old man with an apnea hypopnea index (AHI) of 54.8/h received nasal continuous positive airway pressure (CPAP) treatment starting 2 October 2013. Peripapillary retinal nerve fiber layer (pRNFL), total retinal (TR), and choroidal thickness measurements were taken on 1 October 2013 (baseline), on 14 January 2013 (after 3 months of CPAP) and on 2 October 2014 (after 12 months of CPAP). Following CPAP, AHI decreased to 6.1/h. (A) pRNFL thickness in the right eye (top: baseline, bottom: global RNFL thickness over 3 visits). Note the overall increasing trend of the curve. (B) TR thickness 12 months after CPAP treatment vs. baseline. Note the retinal thickening in the last EDTRS subfield. (C) Choroidal thickness in the right eye at the levels temporal, subfoveal, and nasal (top: baseline, middle: after 3 months of CPAP, bottom: after 12 months of CPAP).