High altitude retinal haemorrhage
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The acute mountain sickness affects mostly not climatized people. Changes in atmospheric pressure generate a reduction of the partial pressure of oxygen in the blood. This can lead to vascular changes in the retina. This change may not appear if there is a proper climatization while climbing a mountain. The presence of high altitude retinopathy alerts about cerebral oedema related to high altitude. A 36-year-old Male patient came to our institute with sudden diminished vision in the right eye associated with loss of consciousness while climbing a mountain. In the ophthalmological examination, we could appreciate in the right eye a macular haemorrhage and in both eyes few diffuse haemorrhages in the mild periphery.

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