Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Assessment of the Effectiveness of Obstructive Sleep Apnea Treatment Using Optical Coherence Tomography to Evaluate Retinal Findings

Version 1 : Received: 15 December 2021 / Approved: 17 December 2021 / Online: 17 December 2021 (08:47:15 CET)

How to cite: Tejero-Garcés, G.; Ascaso, F.J.; Casas, P.; Adiego, M.I.; Baptista, P.; O'Connor-Reina, C.; Vicente, E.; Plaza, G. Assessment of the Effectiveness of Obstructive Sleep Apnea Treatment Using Optical Coherence Tomography to Evaluate Retinal Findings. Preprints 2021, 2021120284 (doi: 10.20944/preprints202112.0284.v1). Tejero-Garcés, G.; Ascaso, F.J.; Casas, P.; Adiego, M.I.; Baptista, P.; O'Connor-Reina, C.; Vicente, E.; Plaza, G. Assessment of the Effectiveness of Obstructive Sleep Apnea Treatment Using Optical Coherence Tomography to Evaluate Retinal Findings. Preprints 2021, 2021120284 (doi: 10.20944/preprints202112.0284.v1).

Abstract

Retinal findings may change in patients with obstructive sleep apnea syndrome (OSAS). The present study aims to evaluate several retinal findings such as macula layer thickness, peripapillary retinal nerve fiber layer, and the optic nerve head in patients with OSAS using optical coherence tomography (OCT) and monitor the result of several types of treatment of OSAS with OCT. A prospective comparative study was designed. Patients were recruited at a Sleep Unit of a University Hospital and underwent comprehensive ophthalmological examinations. Following exclusion criteria, fifty-two patients with OSAS were finally included. Patients were examined by OCT twice: first, before treatment; secondly, after six months of treatment. In mild-moderate patients, where retinal swelling has been demonstrated, retinal thicknesses decreased [fovea (p=0.026), as well as inner ring macula (p=0.007), outer ring macula (p=0.015), and macular volume (p=0.015)]. In severe patients, where retinal atrophy had been observed, retinal thickness increased [fovea (p<0.001)]. No statistically significant differences in efficacy between treatments were demonstrated. In conclusion, OCT can evaluate the retina in patients with OSAS and help monitor results after treatment. In severe OSAS, retinal thickness increased six months after treatment.

Keywords

Retina; Retinal nerve fiber layer; Obstructive sleep apnea syndrome; Optical coherence tomography; OCT; CPAP; Upper airway surgery.

Subject

MEDICINE & PHARMACOLOGY, Other

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