Does the Base Curve or Diameter Ever Change on Your Contact Lens Prescription?
April 30th, 2010 | See the Top Answers to this Question Below
Or does just the actual number change (e.g. -8.75)
More Contact Lens Websites:
- GruntDoc » Blog Archive » Change of Shift – Vol. 4, Number 22 // Emergiblog
- Change of Shift – Vol. 4, Number 22 // Emergiblog
Popularity: 12% [?]
Posted in 
Tags: 
The base curve and diameter will usually change when you are switching brands, because most brands use different sizing.
One brand may make them in 8.6, and the other brand will call it 8.7…but they are actually the same thing.
It’s the different materials of each lens that affect the fit more.
The diameters can vary by .01 or .02 also, but that doesn’t affect much.