Prism ballasted contact lens

A contact lens with a toric optical zone has its anterior and posterior optical zone surfaces tilted with respect to one another to forming prism in the optical zone. Thickness profiles of the peripheral region are independent of the tilt angle between the anterior and posterior optical zone surface...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Hovinga, Kristen R, Graney, Anita M
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A contact lens with a toric optical zone has its anterior and posterior optical zone surfaces tilted with respect to one another to forming prism in the optical zone. Thickness profiles of the peripheral region are independent of the tilt angle between the anterior and posterior optical zone surfaces.