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The prescription eyeglasses is an age old mechanism of correcting defective visions. Doctors have always recommended the prescription eyeglasses depending upon the needs of the patients. You can find the presence of prescription eyeglasses even in the archeological findings of the global areas. The principle of correcting the vision of the patient by changing the focal points of the eye is followed till date. You can find numerous types of prescription glasses in the market. It is equally used to correcting the nearsightedness as well as farsightedness. The concave lens successfully treats the farsightedness, whereas the convex lens successfully treats the nearsightedness. Some of the prescription glasses are known to use the convex and concave lens together in the same frame for those who are having both the problems together.

Prescription eyeglasses and their types

The market supplies three main types of lenses, each fit for correcting different types of vision problems. You can buy the single vision lens for treating just one type of vision defect at a time namely nearsightedness and farsightedness. This lens has same focal point throughout the lens. The bifocal lens is also commonly seen in the market. As the name suggests, it is highly used for correcting both nearsightedness and farsightedness at a time. This lens has two different types of focal lengths in the same frame. You may also hear the name of trifocal lens. The lens contains an intermediate lens that lies in between the concave and convex lens.

Types of frames used for prescription eyeglasses

The market is full of different types of frames of different designs and raw materials. You can choose from all the latest designs of frames available totally on your choice. Metals, plastics and in certain cases precious metals like gold and silver are used to mount the prescription eyeglasses on them. The designs of the frames can be chosen as per the structure of the face. The oval frames go well with the square faces whereas the rectangular frames look nice on round faces. Though, this thumb rule applies for enhanced looks of the wearers, you don't have to necessarily apply it to yourself.

Buy the prescription eyeglasses online

The prescription eyeglasses are now available online at heavily discounted prices.