GPLI logo
Search the GP lens database
Contact Us
Site Map
Site Search

GP CLINICAL EDUCATION: GP LENS MANAGEMENT GUIDE - PAGE 4

Aspheric Multifocals

Fitting

  • Follow recommended fitting guidelines; high eccentricity designs are often fit a minimum of 2.5D steeper than "K"; lower eccentricity designs are fit 1 - 2D steeper than "K"
     
  • Have, at minimum, one diagnostic fitting set of these lenses; for recommendations, call your CLMA member laboratory
     
  • Good candidates:
    • Low-medium add requirements
    • Computer users
    • Small-medium size pupil diameter
       
  • Good centration is critical
     
  • No greater than 1mm of movement with the blink is desirable

Problem-Solving

  • Excessive movement: Change to a steeper base curve radius
     
  • Peripheral sealoff; adherence: Change to a flatter base curve radius
     
  • Lateral decentration may need to change to another type of lens design

Good Fit High Eccentricity Aspheric
 

Good Fit Low Eccentricity Aspheric

 
Go Back to Table of Contents

or

Go to Page 5
 

GP Lens Design Database - Online Symposium Schedule
 
Newsletter Sign-up - Order Educational Materials
 
Contact GPLI - Site Map - Home

Questions about fitting GP lenses? Send an e-mail to our panel of experts.

Copyright ©1999–2010 Contact Lens Manufacturers Association.
All rights reserved.
This page was last updated Wednesday, March 03, 2010.
 
Printing Note: If you're printing pages from this website and find that the right side is cut off, try this: With older printers, you could choose the "landscape" (horizontal) setting rather than the "portrait" (vertical) setting when printing. But most newer printers let you scale down web pages before you print. For example, if you have an HP laser printer, when you choose "Print" from the menu, you can then choose "Preferences," where under the "Effects" tab you can change the 100% setting to, say, 95%. You may also see a "ZoomSmart" feature that lets you choose "scale to fit."