Seiko has launched its Seiko Prime lens portfolio, which continues to push the technological boundaries of digital, progressive lens design and freeform lens production, the company believes.
Seiko Optical UK commercial manager, Richard Hollings, explained that the new product range has been introduced in the UK earlier than was initially planned as a result of highly successful wearer trials across Europe.
“Prior to the launch, a number of practitioners in the UK had been invited to challenge the product with unusual prescriptions or visual requirements, and the results have demonstrated great success,” he told OT.
Available in Prime X and Prime Xceed, the progressive lens designs incorporate a number of new lens technologies, including active linear progression, advanced aspheric and panoramic atoric design, as well as twineye modulation technology (TMT).
The company is highlighting that the new active linear progressive corridor offers a smooth transition from distance vision, for which Seiko lens designs “are renowned,” before accelerating into intermediate vision.
This is said to provide dynamic vision at the increasing range of intermediate distances that are now regularly used when viewing modern devices, before returning to a stable relaxed linear reading area.
Advanced aspheric and panoramic lens design involves complex calculations to address the changes in effective astigmatism according to the direction of gaze and eye rotation.
Lens wearers are said to have improved, natural vision across the lens surface as a result.
“A significant number of progressive wearers have prescriptions that differ by more than 0.50D between the right and the left. This often causes discomfort in binocular vision, particularly with eye and head movement, as the two images may not be synchronised,” said Mr Hollings.
“TMT offers binocular optimisation for stable fields of view regardless of the viewing distance, resulting in improved comfort and enhanced depth perception,” he explained.
“The Prime Xceed design incorporates new advancements in the way that prism is addressed in progressive lenses, both in terms of prescribed prism and in prism-thinning technology.”
Mr Hollings added: “Advanced prism aberration control significantly reduces prismatic aberrations by using newly developed prismatic error calculation software.
“The inclusion of the frame shape data in the prism-thinning calculation allows a vertical balancing, top and bottom, to enhance the cosmetic appearance of the lenses.”
He concluded: “Finding the right Seiko Prime solution for patients’ requirements is simple, with a wide choice of materials, treatments, fitting heights, large blank sizes and power ranges from +13D to -14D, with cyls to 5.0D.”
For more information, visit the Seiko Optical website.