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Stability of Back‐Toric Prism‐Ballast Hydrogel Contact Lenses

 

作者: MICHAEL HARRIS,   MARY LACONIC,   JANE WARD,  

 

期刊: American Journal of Optometry and Physiological Optics  （OVID Available online 1978）
卷期: Volume 55, issue 1  

页码: 15-18

 

ISSN:0093-7002

 

年代: 1978

 

出版商: OVID

 

关键词: contact lenses;hydrogel;prism ballast;back toric;stability

 

数据来源: OVID

 

摘要:

We fitted each of 20 eyes with 3 different Hydrocurve(tm) contact lenses: (1) spherical with prism ballast, (2) back-toric without prism ballast, and (3) back-toric with prism ballast. We monitored the stability of the lenses. The prism-ballast lenses were generally stable on corneas with zero to 3.5 DK of with-the-rule toricity; the back-toric nonprism lenses were not stable.

 

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