Eyeglasses are quite affordable nowadays. If you are looking for cheap eyeglasses, it is recommended that you shop online. By shopping online, you will find a wide variety of eyeglasses. You can perform a shopping comparison when you shop online. If you shop online, you will be able to save money and buy more. The benefit of shopping online is that you can shop in the comfort of your own home. Because you can shop from your own home, you don't have to drive to the store. Driving to the store will take a lot of time and cost some money. You will eventually spend a lot of money because of the petrol your car use. There are many shopping comparison search engines that you can use to compare the price of eyeglasses including Google Products, NextTag and etc. It is very easy to use a shopping comparison. You simply enter the keyword of the eyeglass which you want to buy in the search box. After that, you can hit the enter key. After hitting the enter key, you will be able to see a list of stores that are offering the cheapest price. If the eyeglass is too cheap, you should not buy it. You should buy an eyeglass that has a price tag that is the same as the market price. If you visit the glasses shop, you will find that you have a lot of lens options you can choose from. You can choose a polycarbonate lens to reduce the thickness of the lens. A Polycarbonate lens is a type of high-index lens that is thin and light. It is 2 times thinner and lighter than the standard eyeglasses. It is initially designed for people with high prescription power. People with high prescription powers often have to wear thick eyeglasses that make them noticeable when they are walking outside. If you find people keep on staring at your thick eyeglass, you might want to consider buying the polycarbonate eyeglasses . There is another type of lens that is thinner and lighter than the polycarbonate lens. It is called the ultra-high index lens. The ultra-high index lens is very thin and more expensive than the polycarbonate lens. Most people choose to use the polycarbonate lens instead of the ultra-high index lens. The polycarbonate lens is especially suitable for people that move around a lot, for example, people that perform outdoor activities and children.