Recently, lots of people with presbyopia select progressive glasses, because such glasses can continuously provide different focuses on one lens. Therefore, the wearers need only use a pair of optical so that they can see objects which are far, middle and near distances. Actually, there are some keys to wear progressive glasses. Undoubtedly, the progressive glasses bring much convenience to many people, but some wearers feel a bit difficult to adapt when they first wear them.

Firstly we should first know the principle of a progressive lens if you want to wear it in a comfortable way. A pair of progressive ray ban with precision should have played different roles while in the different regions of lens. For example, it is used for distant objects at the location of the pupil and will be matched with degrees for long-distance use; the wearer must target the objects and then look forward straightly to see distant scenes clearly.

Below the lens to see close-regions, coupled with vicinity degrees help for people that head can a slight forward lean and eyes to keep looking down the use of glasses to read the bottom when reading or looking for the vicinity. The reason that a lot of wearer feel fatigued easily is diopter lenses on both sides of gradual will changes. As a result, the wearer is just turning left and right eye, after both sides of the region to see what will come out blurred or distorted. In addition, cybraians demand more on middling and close quarters since they get used to spend long time on using computers and reading documents.

Generally speaking, progressive glasses are not suitable to long-time reading, because its scope for middle and near distance is usually narrow. If the wearer had over 175 degrees or above and often look at the objects inside room, you can consider wear a special pair of progressive glasses which is used in middle, closed distance.

While this is not enough ray ban sunglasses to see distant things, but it has a wider optical zone in the design, the effect will be more satisfactory. Who will be easy to adapt to the progressive glasses? In general, if the presbyopia degree is lower, the wearer will be easier to accommodate it. When the presbyopia degree is 100, a pair of progressive glasses should be selected. Otherwise, the adaptive Near-sighted people with about 200-800 degrees are also easier to adapt. In comparison, those people who are slightly near-sighted or far-sighted need more time to familiarize themselves with the use of progressive lenses.

However, not all people are suitable for wearing a progressive lens. If the degrees between two degrees have a big gap then the possibilities for integration of the issue of eyes is greater, thus you may feel fatigue when keep eyes on the object. For wearers, you can ask your optometrist to assess whether suitable for progressive glasses, and they also should select the most fitted design according to your degrees and purpose. Do not forget to adjust the position of rims. The deviation from rims will affect your eyesight.

When fitting presbyopic glasses, you should conduct comprehensive examination for the eyes of the old people, including distant vision, near vision, refracting media, and eye fundus, especially observe whether cataract, glaucoma and eye fundus diseases ex

  • Far above 1.0 and vision in low near visual, only need correction look near visual, if because with cataract is declining eyesight, correction to measure when near visual scale must be far sight for standard.

First of all, get your eyes tested by professional optometrists. Optometrists will give a copy of your prescription to you after the examination. A word of caution: when buying the presbyopic optical , one needs to be helped by the professionals, in order to make sure that the lenses' centre of your reading glasses is in line with the centre of your eyes.

As to the quality of the ray ban frame, you need pay attention to following points:

  • Elasticity is one of the aspects in determining the quality of frame.
  • Smooth glossy coating of frame gain better quality.
  • The glasses frame which weld is smooth, little and even is good quality.
  • The product parts of good frames should be firmly fitted.
  • The two lenses should be totally the same in the size and shape, and the symmetrical nosepiece is required.

When the old man choose the ray ban sunglasses , may select either the normal lenses or bifocal lenses, and the glass should be good photopermeability as principle. However, the lens of the old people is increasingly hardening. In addition, the accommodation power weakens and the eyes organization bocome weaker. For the purpose of clear vision when look at near things or things far away, You may chooce bifocal lens or asymptotic lens to wear. It's benefit to protect eyes.

Kids optical mainly have the therapeutic effect on kids' eyes and may have some cosmetology effect. The fundamental measure to ensure the normal use of kid glasses is to protect it well. How can children protect their eyeglasses?

It should be placed in a suitable place. When you take off glasses, don't let the spectacle lens touch table surface. You should put your glasses in the box when sleeping in order to protect the lens from wearing, tearing and crushing. Glasses case must not be too soft, otherwise, the long-term squeeze can distort the frame legs, so that eye vision will be influenced because of a certain inclination.

Don't use the clothes or fingers to polish the lens when there is dust or dirt on it. This will wear lenses, reduced transparency, the long run, glasses piece would be like having a layer of mist, like blocking opaque, If when there are greasy dirt or other dirty things on the lens, you should breathe out the one breath to cause the dirty thing moist to use the eyeglasses cloth to scratch gently again, if children brillen blocked, or it can't correct eyesight normally, should go to the hospital to check in time, have an eye test, wear the glasses suitable again.

When the children do sports or make other violent activities, should remove the glasses, put it into the spectacle case. Because children are lively and naughty, glasses frames had better be made of plastic or poly glass. The mirror holder relatively wide, it is comfortable for children to wear, and difficult to damage, either difficult to hurt child's eyes. Moreover, its price is low, it is a popular mirror holder.

The size of frames of glasses must be suitable. Some parents suppose that big frames are more beautiful and some think that small frames are tight so that it won't fall. These two opinions are both incorrect. Too large or too small frames will cause kids' eyes to deviate from the optical center of lens. It can not only achieve the effect of vision correction, but also accelerate refractive errors, and even affect the normal development of the face. Therefore, kid brille frame must be chosen according to their growing condition of head, face and eye orbit and eye ball, and it must be replaced with continuous growth.