Smith F D
J Am Optom Assoc. 1979 May;50(5):555-7.
Ophthalmic standards such as ANSI Z80.1, 1979 (Recommendation for Prescription Ophthalmic Lenses) are developed by the joint effort of many disciplines from eye care practitioners to suppliers and manufacturers. The tolerances, agreed upon by consensus, are fundamentally controlled by the state of the art, that is upon the quality of product which can be reliably produced by competent personnel using standard methods of processing. Research has demonstrated that the Z80.1, 1972 standard had been set at a level above the state of the art for today's lenses. Some of the tolerances in the 1979 revision were therefore lowered so as to establish a more realistic guideline. The new standard, if diligently applied by both laboratories and dispensers, should lead, however, to an increase and not a reduction in product quality.
诸如美国国家标准学会（ANSI）Z80.1（1979年版，《处方眼镜镜片推荐标准》）之类的眼科标准，是由从眼科护理从业者到供应商和制造商等多学科共同努力制定的。这些经各方协商一致同意的公差，从根本上来说是由当前技术水平控制的，也就是说取决于有能力的人员使用标准加工方法能够可靠生产的产品质量。研究表明，1972年的Z80.1标准设定的水平高于当今镜片的技术水平。因此，1979年修订版中的一些公差被降低了，以便建立一个更符合实际的指导方针。然而，如果实验室和配镜师都认真执行新标准，应该会提高而不是降低产品质量。
