An easy-to-fit GP daily wear lens with a unique bi-aspheric back surface design that provides excellent patient comfort and adaptation. Boston Envision contact lenses are an ideal alternative for visually or medically demanding patients.

Design

Base Curve:

7.0mm - 8.3mm (0.1mm increments)

Backsurface Design:

Bi-Aspheric Continuous Curve

Diameter:

9.3mm - 10.3mm

Powers:

-20.00D to +20.00D

Optical Zone:

1.5mm less requested diameter

Center Thickness:

0.15mm (@ -3.00D)


Disinfection Methods

Boston Care Systems

Indications/Features

  • Myopia
  • Hyperopia
  • Astigmatism
  • Daily wear

Material Properties

Trade Name:

Boston EO

Material Name:

enflufocon B

Oxygen Permeability (Dk):

58*

Wetting Angle:

(Captive Bubble) 49 deg.

Hardness:

(Rockwell R) 114

Refractive Index:

1.429

Specific Gravity:

1.23

Tints:

Blue

UV Absorber:

yes

*polarographic method (ISO/Fatt)

Processing

Manufacturing Method: Lathed Back/Lathed Front