The major use of progressive glasses is to correct various ailments of vision including presbyopia. The patients of presbyopia complain of gradually decreasing power of the eyes. Lenses of such glasses are constructed in such a way that their power increases from top to bottom. Due to their peculiar structure, these might lead to distortion in vision or blurred vision, albeit such cases are too few in number. In fact, these have a number of advantages over bifocal glasses.
Here are some features of progressive glasses:
1. Cost: Before going to buy progressive glasses online, you need to know that such glasses are much more expensive than bifocal glasses. This is mainly due to the increased level of expertise required in their manufacture. Thus, you can look for such stores where you can buy cheap glasses online. At such stores, you can get good quality progressive glasses at much lower price than anywhere else.
However, if you wish to buy cheap glasses online, you may need to double your efforts as finding cheaper progressive glasses would need a lot of research work to be done. Considering the heavy price of such glasses, any effort that is spent in finding discount progressive glasses will help you in saving a lot of your hard earned money.
2. Availability: Owing to the high expertise required, these are not available with every manufacturer. Thus, when you are going to buy glasses online, you need to check first, whether the online store houses these types of glasses or not. Even if it does, you need to check whether these are of a good quality or not. Since a physical touch is not possible when you buy glasses online, you need to take help of other methods to ensure that.
You can take help of reviews left by other users who might have purchased progressive glasses from that particular online store. Such reviews will be very helpful in knowing the quality of product and after sales service of that store. Moreover, it will be quite helpful if you check out with the store that whether enough measures have been put in place in order to remove aberrations.
These days, such glasses are manufactured with state-of-the-art technology with which the manufacturers can control the manufacturing process with the help of computers. The lenses are cut and polished in such a way that the buyer faces minimum possible aberration while using them. Thus, when you buy progressive glasses online, you need to check whether such technology has been used to manufacture them or not.
3. Miscellaneous: You might feel a little uncomfortable when you wear the progressive glasses. This is mainly because our brain might need some time to get adjusted to them. Moreover, computer users might find it very difficult to use them as they might need to keep on adjusting the position of their heads to see clearly with their help. Thus, you may end up developing problem in your neck and back after using them while you are operating your computer.