| 英文描述 | A series of horses had head shaking. Clinical signs were associated with exposure to light, such as sunlight, and were alleviated by blindfolding or during the night. No other cause was evident, and this was diagnosed as light-triggered (photic) headshaking. There is shaking of the head from side to side, up and down, acting like a bee has gone up the nose, snorting or sneezing with headshaking, and rubbing the nose on objects or on the ground while moving; signs are exacerbated when the horse is worked or exposed to direct sunlight. |
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