In recent years, with the development of science and technology, a fashion model of progressive eyeglasses has been adored by more and more people, especially the middle-aged and the elderly. However, in the choice of them, some requirements have to be observed.

First, the general frame edge had better be larger than 30 mm and the cross-chip assembly line of young people’s progressive lens should be 14 millimeters to the center of lower district.

Second, pupillary distance can affect the gradual use of multi-focal glasses. The measurement of far distance between pupils should proceed in the parallel conditions of eye axis.

Third, the processing of progressive multi-focal lenses:

Like the general machining base of normal glasses, milling process of progressive eyeglasses online is not complex, but even easier than that of astigmatism lenses, as long as the optical center of lenses is placed at a corresponding location. However, people must pay attention that the reference level should set in the horizontal position without laying much emphasis on the axis of astigmatism, because it has been setup correctly in the grinding. More importantly, all hallmarks on lenses must be well preserved.

Fourth, the detection of progressive multifocal lenses:

(1) Check the prescription, which includes species, pupil distance, and pupil height and other data of multi-focal glasses.

(2) Detect far photometry, that is to check distant light status of lens, luminosity, astigmatism and the optical axis.

(3) Move lenses in focimeter slowly forward, until photometry shows in the next area and then have a check carefully.

(4) Check the distance between pupils and its height.

Fifth, there are also some notes for new wearers of progressive glasses.

1. People should clean glasses first, which can help to inspect marks on the lens, so as to see whether the reference level of eyes is consistent. At the same time, optical center must level at the center of pupils. In case of anything incorrect, people should adjust the frame slightly.

2. The new wearers have to get used to progressive multifocal glasses gradually. When in the use of them, people should better behave quiet first, from inside to outside.

3. If the vision of progressive multifocal glasses is not as good as that of single-focus glasses, people should learn to swing heads so as to see objects clearly.

4. As for people who wear such multi-focal eyeglasses for the first time, it is best to see objects one meter’s away while walking. Meanwhile, wearers must avoid pinning down to watch close areas, and be prudent when going under stairs.

After acquiring this basic knowledge, people can go to Bigeyeoptical.com immediately and try on various progressive multifocal eyeglasses through “visual try-it-on” software. High quality ones, considerate service and unbeatable price are provided for people’s option. They will give wearers a confidence boost. So go and choose the perfect match.