1. Temporal retinal nerve fibre layer thinning in cluster headache patients detected by optical coherence tomography

    Temporal retinal nerve fibre layer thinning in cluster headache patients detected by optical coherence tomography

    Background The exact pathophysiology of cluster headache (CH) is still not fully clarified. Various studies confirmed changes in ocular blood flow during CH attacks. Furthermore, vasoconstricting medication influences blood supply to the eye. We investigated the retina of CH patients for structural retinal alterations with optical coherence tomography (OCT), and how these changes correlate to headache characteristics, oxygen use and impaired visual function. Methods Spectral domain OCT of 107 CH patients – 67 episodic, 35 chronic, five former chronic sufferers – were compared to OCT from 65 healthy individuals. Visual function tests with Sloan charts and a substantial ophthalmologic examination were engaged ...

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