Lenses>Soft Lenses>Single Vision>AldenHP49
Design
Made in Hioxificon B material
49% Water
15 DK (ISO)
Superior Duribility
All Lenses are made to order
Candidates
Good for dry eye wearers
Problem solving & preventing
Challenging fits & RXs
Replacing discontinued or hard to get lenses
Lens Parameters
Base Curve:
8.3, 8.6, 8.9
Distance Power
+30.00D to -30.00D in .25D steps
Diameter:
14.5mm
Fitting
New fits
Empirically fit the lens based on spectacle Rx & K readings.
When empirically fit, 1st pair is common, but adjustments are often necessary.
Replacing Other Brands
Alden HP should be considered an upgrade to previous prescribed products
Alden HP Lenses utilize contemporary materials & designs.
Alden's lenses will not perform exactly like other brands.
Adjusting lenses
Utilize the original pair as diagnostic lenses to make adjustments to the design.
Obtain 1) general fitting characteristics 2) over-refraction 3) orientation observations
Valley Contax
200 South Mill St· Springfield, OR 97477