At Hoya Vision Care, we launched the iD Lifestyle® lens family to tackle several common issues faced by progressive lens wearers. These included challenges such as locating the reading area, width of the reading area, and imbalances in focusing and shifting gaze for all patients.
Our core technologies have evolved over time to address these concerns, offering wearers superior visual clarity and comfort.
Evolution of progressive lens technology
The evolution of the iD LifeStyle® lens family represents a journey of continuous improvement and innovation in progressive lens technology. It began with the groundbreaking introduction of iD technology, which minimized distortion and enhanced wearer comfort by applying power distribution to the front and back of the lens.
The next iteration, iD LifeStyle® 2, emphasized personalization and addressed specific lifestyle needs through distinct lens designs. And iD LifeStyle® 3 further introduced Binocular Harmonization Technology (BHT) for an improved reading experience.
Now, with the launch of iD LifeStyle® 4, we’ve reached the culmination of these advancements. This latest addition introduces 3D Binocular Vision technology to further enhance comfort and ease of adaptation by addressing vertical imbalances in near-peripheral areas.
Understanding 3 Binocular Vision Technologies that drive clear, comfortable vision for PAL wearers
HOYA Vision Care's progressive addition lenses (PALs) combine three binocular vision technologies — the Binocular Eye Model, Binocular Harmonization Technology, and 3D Binocular Vision — to synergistically address issues of focus, depth perception, stability, and comfort in patients with binocular disharmony stemming from differing prescriptions between their eyes.
The Binocular Eye Model facilitates the assessment of key evaluation indices, while Binocular Harmonization Technology enhances both spectacle lenses to optimize binocular performance. 3D Binocular Vision not only broadens the horizontal and vertical visual fields but also bolsters depth perception, collectively enhancing overall visual experience.
1. Binocular Eye Model
Our Binocular Eye Model incorporates five patented evaluation methods to assess binocular performance and ensure each lens design is optimized for real-life conditions. This results in enhanced clarity, reduced eye strain, and improved visual comfort for your patients. Implementing the Binocular Eye Model ensures the compensation calculations have been incorporated within tolerance to the final lens design and maximum binocularity is achieved.
2. 3D Binocular Vision
HOYA's 3D Binocular Vision technology offers prismatic compensation in the peripheral area, creating balanced binocular vision and providing wearers with a stable viewing experience.
By reducing unwanted prismatic effects and optimizing depth perception, wearers adapt faster than conventional progressive addition lenses (PAL). Additionally, this technology minimizes vertical prism imbalance induced by progressive distribution.
The result is more stable vision and reduced distortions, particularly in up-close and mid-range views, ultimately leading to a more comfortable and natural viewing experience with heightened clarity.
3. Binocular Harmonization Technology
HOYA developed Binocular Harmonization Technology (BHT) to tackle anisometropia, a common issue affecting over 85% of people, where different prescriptions in each eye can cause visual discomfort and disrupt binocular vision.
BHT works by compensating for the individual prescriptions for each eye, calculating optimal lens designs to ensure balanced power distribution and progressive corridor alignment. Your patients benefit with effortless focusing, stable vision, and improved depth perception.
This technology alleviates symptoms such as eye strain and headaches, and it also enhances binocularity, which is particularly beneficial for wearers of progressive lenses experiencing visual imbalance.
4. Integrated Dual Surface™ Design
Integrated Dual Surface™ (iD) Technology applies power distribution to both sides of the lens. This approach incorporates a vertical progressive component on the front, facilitating seamless viewing from far to near distances.
Simultaneously, the horizontal progressive component on the back maximizes the near field of view, ensuring an expansive and versatile visual experience. The integration of advanced surfacing on both the front and back of the lens maximizes the field of view, minimizes distortion, and reduces eye rotation.
For a deeper look into our binocular technologies, please download our white paper.
