BOSTON™ Envision Gas Permeable Lens

BOSTON™ Envision Gas Permeable Lens

Category: RGP Spherical Lens

Specifications
Packing
1/pk
Material
Enflufocon B
Dk/t @ -3.00D
58
Center Thickness @ -3.00D
0.15
Diameter (mm)
9.3 to 10.3 (0.1 step)
Base Curve (mm)
7.0 to 8.4 (0.05mm step)
Power Range
+20.00 to -20.00 (0.25 step)
Design
Bi-aspheric back surface
Details

Visual Mastery: Experience High-Precision Optics with BOSTON™ Envision RGP

Product Introduction The BOSTON™ Envision is a Rigid Gas Permeable (RGP) contact lens featuring a patented geometric design. Unlike standard RGPs that rely solely on material properties, Envision utilizes a unique back-surface multi-curve design to align perfectly with the cornea. This design significantly enhances lens stability and centration on the eye, providing users with a more refined and sharper visual experience—making it ideal for professionals who demand the highest visual quality.

Core Technology & Benefits

  • Patented BVP (Bi-Variable Posterior) Design: The heart of the Envision lens, this technology mimics the natural shape of the cornea. By varying the curvature across the back surface, it achieves a more even pressure distribution, which enhances stability and improves initial comfort upon insertion.

  • Superior Astigmatism Control: Thanks to its precise centration, the lens utilizes the "tear lens" effect to effectively correct moderate to high levels of corneal astigmatism. This eliminates the visual fluctuations and blurring often associated with soft toric lenses.

  • High Oxygen Permeability: Utilizing classic BOSTON™ fluoro-silicone acrylate materials, the lens ensures a continuous flow of oxygen to the cornea. This maintains long-term physiological health and prevents complications related to hypoxia (oxygen deprivation).

  • Ultra-Smooth Surface Finish: The lens surface undergoes a high-precision polishing process to minimize the adhesion of lipids and proteins. This ensures the lens remains clear and provides high-contrast vision throughout its intended lifespan.

Common Questions

1. Why does BOSTON™ Envision center better than standard RGPs?
The patented multi-curve posterior design allows the lens to align more closely and naturally with the aspheric curvature of the cornea. This "custom-fit" feel reduces excessive lens movement, keeping the optics aligned with your pupil.
 
2. How long is the adaptation period for this lens?
Many users find that Envision is easier to adapt to than traditional RGPs because its edge profile is optimized to reduce lid interaction. Generally, a stable level of comfort is achieved within about one week of consistent wear.
 
3. Are Envision lenses suitable for sports?
Due to its superior centration, it performs more reliably during physical activities than many other RGP designs. However, for high-impact contact sports, using protective goggles in conjunction with your lenses is still recommended.
 
4. How should I properly care for my Envision lenses?
It is highly recommended to use the BOSTON™ professional care system (such as the BOSTON™ Simplus or Advance formulas). Proper daily maintenance—including rubbing, rinsing, and disinfecting in a dedicated conditioning solution—ensures a lifespan of 1 to 2 years.

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