What are double aspheric lenses?

What are double aspheric lenses?

Double aspheric lenses are a new type of lens designed for high minus prescriptions, where both surfaces of the lens are aspheric in design. This results in both thinner and lighter lenses compared to the 1.74 index.

Are Essilor lenses aspheric?

Essilor’s emphasis on clarity of vision, eye health care, safety and comfort ensures that the spectacle lenses it offers are impact resistant, lighter and thinner. Essilor’s special range of aspheric design is called the Airwear series.

What is the benefit of an aspheric lens?

Aspheric lenses are smoother and flatter, reducing the distortion that occurs when someone wears glasses. For many people, this improvement means feeling better in their glasses and being more willing to wear their corrective lenses. Aspheric lens elements are also more complex than spherical lenses.

Are aspheric camera lenses better?

Have you ever played around with blur? Aspheric lenses result in sharper images, especially at wider apertures, and can also be designed to minimise other optical imperfections such as chromatic aberrations. Aspherical lenses are more challenging to manufacture, which makes them more expensive.

Are double aspheric lenses worth it?

Are aspheric lenses better? Aspheric or double aspheric lenses have the advantage of being thinner, flatter and lighter weight than traditional spheric equivalents. This makes them easier to wear in your glasses frame with improved aesthetics due to their sleeker appearance.

Is the a big difference between 1.61 and 1.67 index lenses?

1.67 high-index lenses surpass in thinness and lightness when compared to 1.61 high-index lenses. It helps with eye distortion caused by stronger prescriptions and is ideal for individuals with an SPH correction between +/- 7.00 and +/- 9.00, and a CYL correction between +/- 3.25 and +/- 4.00.

Who needs aspheric lenses?

The long answer: Individuals with strong farsighted prescriptions should choose aspheric lenses if they are concerned about the bulging appearance of the lens or the magnification of their eye. But aspheric lenses aren’t just in prescription eyeglasses, they are available in reading glasses, too!

How do I know if I need high index lenses?

5 Signs You Might Need High Index Lenses

• Your Prescription Is Fairly Strong.
• You’re Tired of Wearing Heavy Glasses That Won’t Stay Put.
• You’re Frustrated By a “Bug-Eye” Effect.
• You Want More Choices in Glasses Frames.
• You’re Dealing with Unexplained Eye Strain.

Why Essilor Varilux progressive lenses?

At Essilor, our lens technologies reveal a world more beautiful than you ever imagined, detail by detail. Vision changes as you age, but it shouldn’t get in the way of how you live, work, and play. Unlike bifocals or ordinary progressive lenses, only Varilux progressive lenses help you achieve the most natural vision possible.

What is an Essilor expert?

Essilor Experts™ are independent eyecare professionals who are specially trained to explain the many benefits of lenses from Essilor. They are the first to know about the latest lenses, and about current promotions to make sure you get a great deal on your lenses.

What is aspheric and double aspheric lenses?

Aspheric and Double Aspheric Lenses. The opportunities for single-vision aspheric lenses are relatively well known. Aspheric lenses improve the cosmetics of a pair of glasses by using surface curves that are flatter centrally and progressively flattened (in plus prescriptions) as one moves from lens center to edge.

Why choose Essilor EyeZen™?

Its international presence and ability to meet local specificities enables the brand to adapt to the needs of consumers across the world. Eyezen™ is a new category of lenses, flagship of Essilor’s cutting-edge innovation, designed for a connected life to relax and help protect eyes from screens.