視運動性眼振
視運動性眼振 (OKN) は、視覚環境の可動性に応じた不随意な目の動きからなる眼球反射です。この現象には、刺激の方向への眼球運動の遅い段階と、それに続く反対方向への速い段階が含まれます。オフィスで実行すると、遅い段階はスムーズな追跡を表し、速い段階はサッカードを表します。
用途と臨床的価値
OKN は、非協力的な患者の視覚系を評価するのに特に役立ちます。その診断および位置特定の価値は、遅相と速相の両方で異常を特定できることにあり、これにより神経学的または眼の問題に関する情報が得られます。
実践的な推奨事項
- OKN を実行するには、次のようなアプリケーションを使用できます。 スマート検眼、視運動ドラムを入手できるようになります。
- 視覚系を完全に評価するには、遅い段階 (スムーズな追跡を表す) と速い段階 (サッカードを表す) の両方を評価することが重要です。
診断基準
OKN は通常共役で、水平方向と垂直方向の両方で対称です。視運動反応の異常は、診断情報と位置特定情報を提供します。 OKN が神経内科医にとって特に役立つ 6 つの臨床シナリオについて説明します。
参考文献
19955111
{19955111:YRI5JWK7}
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バンクーバー
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デフォルト
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https://neuropediatoolkit.org/wp-content/plugins/zotpress/
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