Abstract:Background: In a previous uncontrolled study, continuous positive airway pressure (CPAP) therapy for obstructive sleep apnoea (OSA) improved vision in patients with diabetic macular oedema. Objectives: We investigated whether the above improvement in vision (or visual processing) might have been due to reduced sleepiness, rather than a true improvement in retinal function. Methods: Twelve normal control subjects and 20 patients with OSA were tested for their ability to recognise degraded words, by means of a c… Show more
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