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All designs within the Anthology family of progressive lenses — including Novella, with its short corridor — were created utilizing the same proven design philosophy. Like Novel and Narrative

lenses, Novella lenses were designed to balance the functionality of viewing areas, including size and location, with softness and smoothness, resulting in exceptional comfort and success.

Viewing Areas: size and location

The fovea is the sweet spot for sharp central (foveal) vision within the eye. It is the small area within the central retina that is densely packed with cones, the photoreceptor cells responsible for high-resolution vision.

The human eye has only 10 degrees of central foveal vision. Thus, 10 degrees is the minimum area of precise power required for tasks such as reading, computer use or driving. Novella’s distance viewing area is 31 degrees, over three times what is needed. This is beneficial for successful fitting and patient comfort. It also reduces the need to maintain an exact position of wear, a problem many patients experience over time.

The intermediate viewing area is 14 degrees, 40 percent more than needed. This is beneficial for mid-range tasks like viewing a computer screen or vehicle dashboard.

Novella’s near viewing area is 20 degrees, double what is needed. This is beneficial for tasks such

as reading or crafting, as it offers a wide range of near vision.

The Novella pro-gressive lens design takes natural head and eye movement into consideration. Presbyopes will begin to read at a 24-degree viewing angle, 11 milli-meters below the fitting cross. This allows for ample reading room in the Novella progressive lens, even when fit in a frame with a small B measurement.

The inset of the Novella progressive lens changes systematically across base curves to balance the dif-ference in convergence of the eyes, accommodating for myopia and hyperopia. This provides wide areas of clear and stable near vision across all Rx powers.

Short Corridor Success

Short on compromise

Short-corridor progressive lenses (PALS) have minimum fitting heights between 13 and 15 mm. Patients fit with these lenses commonly encounter more visual compromises than those fit with longer corridor progressives, designed for general use. That is because short-corridor progressive lenses necessarily change power from distance to near more quickly, usually resulting in a less usable and stable area for intermediate vision as well as more unwanted astigmatism or distortion in the periphery. The Novella short-corridor progressive, by comparison, compromises very little. It allows those patients who prefer smaller frames to have the most successful and comfortable wearer experience possible.

A 10-degree visual angle is equal to a 7mm diameter area on the surface of a lens, assuming a

standard 13mm vertex distance

Softness

Novella is the softest conventional short corridor progressive available on the market today. This gives wearers a natural and comfortable visual experience. Patients fit with Novella lenses will find it easy to detect motion and identify objects accurately in the periphery.

Smoothness

Novella’s smooth power transition from distance to near ensures that patients fit with the lenses will experience continuous vision from far to near and will be able to precisely view objects at any distance in between.

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Compact without the compromiseThe Novella progressive effectively combines the critical elements of functional viewing areas, softness and smoothness for a comfortable wearer experience.

In the distance, Novella lenses offer a generous viewing area. This is beneficial for successful fitting and patient comfort. It also reduces the need to maintain an exact position of wear, a problem many patients experience over time.

In the periphery, Novella lenses are the softest short corridor conventional design available today. As a result, the lens is easy to wear, eliminating the feeling of visual borders and maintaining the wearer’s ability to detect motion and quickly identify objects.

In the intermediate and near areas, Novella lenses offer wider viewing throughout, an exceptionally smooth transition from distance to near and maximized binocular vision in all prescriptions.

Novella lenses have an 11mm corridor and a 14mm fitting height. They are the ideal choice for presbyopes of all ages who choose from today’s smaller frames.