Progressives

WHAT DOES THIS MEAN?

What is Binocular Harmonization Technology?

Have you ever found that your progressive ranges are only clear when you cover one eye but not when you simultaneously use both?

Most progressive lenses on the market do not correct for Binocular Disparity. This refers to the slight difference in the images perceived by each eye due to their slightly different positions on the face. Because our eyes are spaced apart, each eye views an object from a slightly different angle.

With Hoyas patented Binocular Harmonization Technology, it recalculates and adjusts the progressive lenses power distribution based on the actual positions on each lens, ensuring both eyes receive the same level of accommodation support, so that you may use both your eyes effortlessly when wearing progressives.

What is iD Technology?

Hoya’s Integrated Dual Surface (iD) technology was the first to enhance progressive lenses by using both the front and back surfaces of the lens. This design helps spread out the lens power more effectively, making your vision clearer and more comfortable. The front part of the lens handles the vertical changes for easier reading, while the back part handles the horizontal changes to give you a wider reading area and less distortion at the edges.

What is Backside Surface Technology (BKS)?

Hoya’s BKS (Backside Surface Technology) is a way to make progressive lenses more customized to you. It shapes the back of the lens with freeform surfacing to fit your unique vision needs. This means you get clearer and more natural vision at all distances, with fewer distortions and a lens that matches your prescription and lifestyle perfectly.

What is Free-Form Surfacing?

Freeform surfacing is a cutting-edge lens manufacturing technique that allows for highly precise and customized lens shapes. Unlike traditional lens making, which uses standard curves, freeform surfacing uses advanced computer technology to create complex, individualized lens surfaces. This process lets opticians tailor the lens to fit your exact prescription and visual needs, resulting in clearer vision and better comfort.

What are Corridor Lengths?

The corridor length in progressive lenses refers to the vertical zone across which the lens power gradually progresses from distance to near vision. Adjusting the corridor length can help the lens perform better for tasks such as computer work or reading. Previously, variable designs were employed to prioritize the intermediate area and fixed designs to prioritize reading.

Be aware that changing your corridor to either maximize your distance or computer/reading ranges will ultimately take away from the other ranges. There is a standard length if you don’t wish to maximize any range.

What is EX4 Anti-Reflective?

Hoya’s Super HiVision EX4 coating is well-known for its exceptional scratch resistances which is 2.5x more than standard anti-reflective coatings. It even outperforms glass, and has the ability to retain less than 0.5% light reflection. This results in durability and clear vision with minimum glare. This coating also incorporates a process that matches each layer’s adhesive properties, improving its resistance to temperature changes and overall longevity.

What is Recharge coating?

Features:

• Blue Light Filtering: Utilizes absorption and reflection to minimize blue light exposure.
• Blue Reflex Color: Indicates effective reflection of blue light, enhancing lens performance.

Benefits:

• Effective Protection: Guards against harmful blue light (380nm – 460nm) from LED screens.
• Reduced Eye Strain: Increases comfort during prolonged screen use.
• Durability: Offers scratch and smudge resistance with advanced Substrate Matching Technology.

Please be advised. Blue light lenses can provide advantages, but they also come with some downsides. A key issue is their effect on color perception; by filtering blue light, these lenses can make colors look different or less vibrant, which can be a problem for professionals like graphic designers and photographers who need accurate colors. Moreover, the coatings or tints used for blue light protection can change how the glasses look, leading to noticeable reflections or color changes that might not match an individual’s style