眼球表面の特徴と柔らかいコンタクトレンズの装着との関連

Javier Rojas Viñuela¹, James S Wolffsohn², Alejandra Consejo³

¹Natural Optics Balaguer, Lleida, Spain.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)

|August 27, 2025

まとめ

柔らかいコンタクトレンズのフィットには角膜の結晶が影響するだけでなく斜視の高さも影響する周辺の眼のパラメータ,特に上部と下部における傾きは,最適なソフトコンタクトレンズフィッティングの鍵です.

科学分野:

眼科について
生物医学工学
オプトメトリ

背景:

柔らかいコンタクトレンズの装着は視覚の鋭さや眼の健康に不可欠です.
レンズの設計と患者の治療結果を改善するために,眼球表面のトポグラフィーとレンズフィートの関係を理解することが不可欠です.

研究の目的:

眼の表面の形状のパラメータと柔らかいコンタクトレンズのフィッティングとの関連を分析する.
軟直なコンタクトレンズ (SCL) の動きにおける角膜・スクレラル・ジャンクション (CSJ) パラメータの役割を調査する.

主な方法:

標準のシリコンヒドロゲルソフトレンズを装着した106個の目を遡って分析した.
客観的なレンズフィット分析は,独占ソフトウェアと角膜のパラメータのためのEye Surface Profilerを使用します.
デルタサグ (δ-sag) の特徴は,眼 (OC-SAG) とレンズ (CL-SAG) のサギタル高さの関係である.

主要な成果:

δ-サグとレンズフィッティングの特徴の間の有意な相関は見つかりませんでした.
右目と左目の角関節 (CSJ) の角度と外側角膜/角膜の傾斜の統計的に有意な差異.
レンズフィットと周辺眼のパラメータの間の中等から強い関連は,両眼間では一貫していない.

結論:

柔らかいコンタクトレンズの動きは,特に上部と下部に,角膜変異の影響を受けます.
中央角膜のパラメータやサギタルの高さよりも,周辺の傾斜にフォーカスすることは,柔らかいコンタクトレンズのフィッティングに有益です.
アシンメトリックな眼面トポグラフィは,柔らかいコンタクトレンズフィットの一貫性に影響を与える可能性があります.

キーワード:

コンタクトレンズの動きコルネオ・スクレラル・トポグラフィーサギタルの高さシリコンヒドロゲルコンタクトレンズソフトコンタクトレンズ

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