The Beauty of High Index Lenses

A high proportion of the population require glasses to assist their vision. Whilst there is the option of expensive designer glasses, or even contact lenses, many people still feel they are uncomfortable to wear, or are self conscious about how glasses affect their appearance. Years of research has come up against the essential technical issue that the worse someone’s eyesight is, the more the lens has to bend the light, and thus the lens must be thicker and more curved. However there is now a new technology with which light can bend over a smaller space.

High index lenses, or ‘Double (Bi) Aspheric lenses’ are sophisticated new plastic lenses that are thinner and flatter than traditional plastic or glass lenses. This is because they can bend light to a higher degree than any normal lens, and therefore don’t need to be as thick or as overtly curved shaped. If the lens index is higher, them less material is required to match an eye prescription. High index lenses are ranked according to how much they bend light. The higher the index the better the lens is at bending light. Typically, they are between 20 to 65 percent thinner than standard plastic lenses. Therefore, the stronger the prescription, the bigger the variation in thickness is between normal plastic lenses and high-index plastic lenses. High-index lenses are an alternative to the usual prescription plastic eyeglass lenses. Although high-index lenses are more expensive than plastic lenses, they have the benefits of reduced thickness and weight compared to normal plastic eyeglass lenses; it is particularly evident for people who are prescribed a stronger lens.

There are certain private companies who are High Index Lens specialists and offer a wide-ranging variety of the very latest high index lenses around, without a prescription. They are popular because they are seen as being more aesthetically pleasing and subtle than thick, curved lenses.



Natalie Eastaugh is the Internet Marketing Specialist for JDRWebsites.co.uk

If you wish to find out more on high index lenses as well as information about Glasses Frames and Lenses, go to www.glassesframesandlenses.com