Prescription Glasses Explained

Prescription Glasses Explained

Getting the correct prescription glasses, can greatly improve the quality of your life in many ways. An eye specialist can do an eye check-up to know the health of your eyes, and then recommend treatment. The designs have really developed in recent years so everybody is sure to find something that will suit them.

Prescription eyewear is used to solve a number of vision impairments. These include nearsightedness/ or myopia. This happens when you cannot see objects that are far away. They become blurry. The second one is presbyopia. This is when you cannot see objects that are nearby clearly. There is also hyperopia. This happens when you can see objects very clearly when they are far, but they blur when they get closer. The last one is astigmatism which occurs when there is a curve in the lens or cornea of the eye.

Prescription lenses are normally cylindrical. They can curve inward or outward. The ability to focus for a pair of eyeglasses is determined by its thickness, difference in curvature between the front and back and index of refraction. Concave lenses rectify nearsightedness. Cylindrical lenses rectify astigmatism and convex lenses rectify farsightedness.

The cost for eyeglasses varies. It is good to check the cost of the spectacles so that you do not spend more than you had budgeted for. Designer glasses go for more than generic eyeglasses.