There are many different types of eyeglass lenses that can be customized to correct specific vision concerns. Firstly, single-vision lenses have one power or strength over the entire lens. Or one might need a bifocal or trifocal lens – that has two or three strengths respectively. These multiple strength lenses are popular because the wearer only needs one pair of eyeglasses to see both near and far objects.
What Are Graduated Lenses?
In the ‘old’ days one could see a visible line separating the different prescription areas. However, if you are looking for multifocal lenses without a line, these are called graduated lenses. Graduated lenses are convenient! The upper section of a graduated lens provides the strength you need to see clearly in the distance (to drive, for example). The middle section helps you see clearly at intermediate or middle distances (to look at a computer monitor). The lower section helps you see clearly up close (for reading a book).
Almost anyone with eye problems can wear graduated lenses, but they’re typically needed by people over age 40 who are developing a range of vision distance challenges.
Types of Graduated Lenses
Consider these different types of graduated lenses:
- Standard
- Standard graduated lenses are the most common. They give you a fairly wide reading area, but standard graduated lenses require frames high enough to ensure there is a smooth transition between each lens’ strength. The frames must not be too short or the part of the lens for either long distance or close-range viewing may be cut off.
- Short Corridor
- Big glasses may not be fashionable to some people, and that’s where short corridor graduated lenses come in. They are designed to fit into smaller frames, perfect for people who like a smaller look. These need to be fitted in by a skilled optician, and it can be harder to find a selection of frames you like and that will work.
- Computer-Graduated
- These are meant for people who use computer monitors constantly. They are designed for office use and are intended to provide clear vision from 16 inches to 6 feet away. Selecting this graduated lens means that you’ll have to use another pair of glasses to look at far objects.
- Premium
- Premium graduated lenses, often referred to as “free-form design” or “wave-front technology,” provide a wider area for the various lenses. Because these lenses are usually 100 percent digitally surfaced, vision is often clearer. They are designed to incorporate the fact that you have a dominant eye, allowing both eyes to work together. You may find these lenses easiest to adapt to.
Overall, graduated lenses are a great choice! They eliminate the need for multiple eyeglasses and remove that look of lines across the glasses, but they can be more expensive. At Dr. Specs Optical, at 1876 Cooper Road in Kelowna, BC we are happy to guide you through the process of finding the right graduated lenses and providing what is best for your vision. Contact us today!