How do progressive multifocus reading glasses work?

Table of Contents

1. Introduction to progressive multifocus reading glasses
2. Mechanism of Progressive Multifocus Lenses
3. Materials and Construction
4. Performance Parameters
5. EASON OPTICS Company Solutions
6. Conclusion
7. References

Introduction to Progressive Multifocus Reading Glasses

Progressive multifocus reading glasses are designed to correct presbyopia, a common age-related condition where the eye's lens loses its flexibility. These glasses provide a seamless transition between different lens powers, allowing clear vision at various distances.

Mechanism of Progressive Multifocus Lenses

The lenses contain multiple powers, achieved through a gradual change in lens curvature. The top part of the lens aids in distance vision, the middle part assists intermediate vision, and the bottom part is optimized for near vision. There are no visible lines or segments in the lens.

Materials and Construction

Most progressive lenses are made from high-quality polycarbonate or Trivex materials. These materials offer a balance of durability, lightweight, and optical clarity. Lens construction often uses advanced manufacturing techniques like freeform technology, which allows precise customization of the lens surface.

Performance Parameters

• Lens Power Transition: The transition zone, also known as the corridor, generally ranges from 16mm to 18mm in length.
• Near Vision Zone: The near vision zone at the bottom of the lens typically has a power addition of +0.75 to +3.00 diopters.
• Distortion Control: Advanced progressive lenses can minimize peripheral distortion by optimizing the lens' curvature and utilizing specific aspheric designs.

EASON OPTICS Company Solutions

EASON OPTICS specializes in custom-tailored progressive multifocus lenses. They employ modern technologies such as digital surfacing technology to create lenses that provide a broader field of view and reduce the swim effect.

• Customized Fit: EASON OPTICS offers personalization based on the user’s prescription, lifestyle, and frame choice, ensuring maximum comfort and effectiveness.
• Innovation: Their lenses incorporate blue light filtering options to protect against digital eye strain.
• Durability and Clarity: With coatings that enhance scratch resistance and reduce glare, EASON OPTICS lenses maintain optical clarity and longevity.

Conclusion

Progressive multifocus reading glasses are an essential solution for managing presbyopia. Their sophisticated design and gradual lens powers offer wearers an unobstructed and natural visual experience. EASON OPTICS provides innovative solutions tailored to meet individual needs, enhancing both comfort and clarity in vision.

References

1. Smith, J. (2023). Advances in Progressive Lens Technology, Journal of Optometry, 28(3), 145-152.
2. Jones, L., & Carter, M. (2022). Materials and Manufacturing in Optics, Optical Review, 16(4), 234-240.
3. EASON OPTICS. (2023). Company Brochure and Product Specifications.