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眼中風是甚麼?

視網膜位於眼球後方,負責接收進入晶狀體聚焦的光線,並將之轉化為影像,讓我們「看得見」;2 而視網膜之所以能正常運作,有賴血液輸送來供應氧氣和養分,並且帶走新陳代謝後的廢物。3,4 當視網膜血管出現阻塞 (俗稱「眼中風」),血液流動便會受阻,不但引起徵狀,更可能導致失明。1

視乎受影響的範圍,眼中風又可以分為視網膜靜脈阻塞和視網膜動脈阻塞兩類,兩者的風險因素、徵狀、治療等方面不盡相同。請按以下連結了解更多:

 

常見問題

 

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    個別風險因素和身體狀況,會增加眼中風的風險,當中包括:吸煙、 三高 ( 高血壓、高血糖、高膽固醇)、睡眠窒息症等

    參考資料

    1. Scott IU, et al. Lancet. 2020 Dec 12;396(10266):1927-1940.
    2. Cleveland Clinic. Retina. Available from: https://my.clevelandclinic.org/health/body/22694-retina-eye. Accessed 27 Jun 2023.
    3. American Society of Retina Specialists. Retinal Artery Occlusion. Available from: https://www.asrs.org/patients/retinal-diseases/32/retinal-artery-occlusion. Accessed 27 Jun 2023.
    4. University Hospitals Coventry & Warwickshire. Retinal Vein Occlusion. Available from: https://www.uhcw.nhs.uk/download/clientfiles/files/Patient%20Information%20Leaflets/Surgical%20Services/Ophthalmology/Retinal%20vein%20occlusion.pdf. Accessed 27 Jun 2023.

     

    PP-EYL-HK-0248-1 25 Oct 2025