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其他类型的多焦点

双光眼镜是一个伟大的选择完全视力矫正, 但365网站滚球盘对这项技术有另一种看法. 进步的眼镜 work similarly to bifocals, but the prescription gradually changes throughout the lens. You can find standard and premium progressives at EyeBuyDirect, 保费提供了更广阔、更清晰的视野.

常见问题解答

什么是双焦眼镜?

你可以想到 双焦眼镜 as two pairs of glasses in one: a pair of glasses for everyday wear, 还有一副阅读用的眼镜. That’s because bifocal lenses feature two viewing areas divided by a visible line: the larger area is for distance, 底部较小的区域是用来阅读的. Don’t look at them as granny glasses or old man spectacles, but rather as the best of both worlds.

双焦眼镜是如何工作的?

双焦老花镜 have two different lens prescriptions on the same lens. The top portion of the lens is your normal distance prescription, and the bottom section of the lens is for seeing things close-up, 喜欢阅读. These two lenses allow you to alternate between them as you need to by moving your eyes up or down.

双光眼镜的作用是什么?

一般来说, 双焦眼镜 serve the purpose of giving you all of the vision correction you need in one pair of glasses. Being able to read and perform close-up tasks without switching to another pair of glasses, 或者还得再带一双, 这对许多眼镜佩戴者来说是很大的方便吗. EyeBuyDirect提供一些最好的在线服务 双焦眼镜,只需点击一下鼠标.

我如何知道我是否需要双焦眼镜?

If you’re in your early 40s, you may have noticed a few changes in recent years, including:

● You find yourself holding menus, books, and magazines ever further from your face to read them.

● You get headaches or eye fatigue when doing up-close tasks like writing by hand or small, 详细的任务.

● Your quality of vision changes throughout the day: your vision is blurry upon waking or things get blurrier as the day goes on.

●当你开车的时候, you notice that the speedometer is a little out of focus when you glance down at it.

● You carry around more than one pair of glasses to use throughout the day.

如果这些事情听起来很熟悉,那么你并不孤单. Presbyopia is the clinical term for changes that come with aging, 近距离看不清楚. If you’re experiencing any of these signs of presbyopia, it might be time for 双焦眼镜.

What Is The Difference Between 双光眼镜 And 进步的镜头?

在双焦眼镜, the two prescription areas of the lens are divided by a distinct, 可见的水平线. Glasses with progressive lenses are basically bifocals without the telltale line dividing the prescriptions. 进步 lenses often have an intermediate distance between the two, 哪一种最适合电脑使用.

What Are The Advantages And Disadvantages Of 双光眼镜 Glasses?

的优点 双焦老花镜 are the convenience of having two lenses in one and that they are traditionally less expensive than progressive glasses. Their disadvantages are the “jump” of the image between close up and distance lens areas, 缺乏中间视力, 还要花时间去适应它们.

需要多长时间才能适应双光眼镜?

People wearing bifocals for the first time may take a week or two to adjust to them. 这可能需要更长的时间, and some find that they cannot make the transition and give up on them completely.

如何更容易地调整双焦眼镜?

适应戴双焦眼镜可能是一个挑战, but you can definitely take some measures to make the adjustment smoother:

● Wear your 双焦眼镜 continuously to get your eyes used to them.

●走路的时候不要往下看, 如果你需要的话, tilt your head down so that you are looking through the top portion of the lenses.

● Adapt your reading habits by holding your reading material below your face so that you are looking through the lower portion of your glasses.

● Make sure your 双焦眼镜 are properly fitted to your face.

双光眼镜适合驾驶吗?

双光眼镜在开车时非常好用, but many people prefer using bifocal sunglasses for driving to cut down on glare. The benefit of driving with bifocals is that when you need to look at the dashboard or read a map, 你已经戴上了能胜任这项任务的眼镜.

你能买到没有皱纹的双光眼镜吗?

是的! If you love the idea of 双焦眼镜 but hate the lines, 那么你应该考虑渐进式隐形眼镜. 它们基本上是没有条纹的双焦眼镜, and they add a mid-distance area that is particularly useful for computer use.

谁发明了双光老花镜?

While there is some question as to the accuracy of the claim, Benjamin Franklin is generally credited for the invention of bifocals. 即使不是他发明的, he was certainly an early adopter and the reason for their popularity from the late 1700s and on.

你能在没有处方的情况下买双焦眼镜吗?

Because 双焦眼镜 are defined by their featuring multiple prescriptions, 没有处方是买不到双焦眼镜的. 对不起!