Boston Envision Contact Lenses
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
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Base Curve:
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7.0mm - 8.3mm (0.1mm increments)
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Backsurface Design:
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Bi-Aspheric Continuous Curve
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Diameter:
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9.3mm - 10.3mm
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Powers:
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-20.00D to +20.00D
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Optical Zone:
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1.5mm less requested diameter
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Center Thickness:
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0.15mm (@ -3.00D)
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Disinfection Methods
Boston Care Systems
Indications/Features
- Myopia
- Hyperopia
- Astigmatism
- Daily wear
Material Properties
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Trade Name:
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Boston EO
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Material Name:
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enflufocon B
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Oxygen Permeability (Dk):
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58*
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Wetting Angle:
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(Captive Bubble) 49 deg.
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Hardness:
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(Rockwell R) 114
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Refractive Index:
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1.429
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Specific Gravity:
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1.23
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Tints:
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Blue
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UV Absorber:
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yes
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*polarographic method (ISO/Fatt)
Processing
Manufacturing Method: Lathed Back/Lathed Front
