Department of Vision Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, UK.
Ophthalmic Physiol Opt. 2010 Jul;30(4):402-4. doi: 10.1111/j.1475-1313.2010.00755.x.
The current international standard for spectacle frames recommends that frames weighing up to 25 g should have a minimum nose-pad contact area of 200 mm(2) and that those weighing over 25 g should have a minimum contact area of 250 mm(2). It is shown that these recommendations are being almost universally ignored for frames with separate pads on arms. The information on frame materials in manufacturers' literature is woefully inadequate but, from the information available, there was little difference in weight between stainless steel frames and those from unnamed materials.
现行国际眼镜架标准建议，重量不超过 25 克的镜架，鼻托接触面积最小应为 200 平方毫米（2），重量超过 25 克的镜架，鼻托接触面积最小应为 250 平方毫米（2）。研究表明，对于带有分体式镜腿的镜架，这些建议几乎完全被忽视。制造商文献中有关镜架材料的信息严重不足，但根据现有资料，不锈钢镜架与不知名材料镜架的重量差异不大。
