No7 Contact Lenses: Student Support website
ICON Multifocal
The ICON Multifocal design is based on the back surface geometry of the ICON Aspheric Single Vision lens, with an aspheric centre distance front surface.
GP Design
Aspheric
Multifocal
Centre/distance
– ICON Multifocal
Overview
The ICON Multifocal design is based on the back surface geometry of the ICON Aspheric Single Vision lens. An aspheric centre distance front surface generates an increasing positive power towards the periphery, while the varifocal effect is achieved in two ways:
- By simultaneous vision
- By the contact lens’ natural tendency to translate on downgaze
A nominal +0.50 should be added to the patient’s spectacle reading add for optimal near vision.
ICON Multifocal offers excellent vision and comfort and is perfect for:
- Patients requiring a budget multifocal option
- Upgrades from traditional C3 and C4 designs
– ICON Multifocal
Parameters
Materials |
No7 recommends the Optimum rage of materials. Other materials available on request.
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Dk | XO=200, Range 6/EO=58, Range 3 |
Powers | -25.00 to +25.00D in.025 increments / Cyl -0.25 to -12.00 |
Add | +0.50 to +3.50 in 0.25 steps |
Average Thickness |
0.18mm across all minus powers
|
Diameters | 9.30 and 9.80mm on all powers |
Base Curves | 7.00-9.00mm in 0.05mm increments |
– ICON Multifocal
Fitting Guide
Selecting base curve |
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Selecting diameter |
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Ideal fit |
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Flat fit |
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Steep fit |
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Over refraction |
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To order |
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Here to help
Got a question? Give us a call
At No7 we have a proud reputation for industry leading customer support. Our friendly and experienced Technical and Professional teams are ready to help and advise you on any contact lens design or fitting questions you have. You can reach them on:
- 01424 850620
- technical.services@no7contactlenses.com
- training@no7contactlenses.com