Alden HP Prosthetic

The Power to Correct Vision. And Change Lives.

Like every Alden Optical contact lens, our HP Prosthetic lenses are always custom made to your exact specifications, giving you fitting control that’s truly second-to-none. Backed by this unprecedented control, these simple, economical, and effective prosthetic tints allow you to help more patients who would benefit from wearing prosthetic lenses.

Alden HP Prosthetic lenses can be used to manage a wide range of conditions, including:

  • Cornea, iris, or lens abnormalities
  • Ocular scarring or other disfigurements
  • Cosmetic imbalance
  • Extreme photophobia
  • Diplopia

Enjoy unparalleled flexibility along with uncompromising service.

Available as spheres or torics, Alden HP Prosthetic lenses’ vast array of parameters allow you to create the best fit possible for your patients. And just as important, all of our lenses are backed by the service and support you need to ensure patient success.

  • Choose from an incredible range of sphere powers, cylinder powers, and axes
  • Available in virtually any base curve or diameter
  • All single lens orders carry a full (100%) 90-day warranty
  • For prosthetics, please add one to two days to our standard two-day lens-processing time
  • Choose from annual, quarterly, bi-monthly, or monthly replacement schedules
  Materials Diameter Base Curve Sphere Cylinder Axis
ALDEN
HP TORIC
or
SPHERE
HP 49
(Hioxifilcon B)
ANY
AVAILABLE

14.5 suggested
ANY
AVAILABLE

8.3, 8.6, 8.9
suggested
+30.00 to
-30.00

in 0.25 steps
-0.25 to
-10.00

in 0.25 steps
1° to 180°
in 1° steps
ALDEN
CLASSIC SPHERE
CLASSIC 38
Polymacon,
38% water,
9Dk (IS0)
ANY
AVAILABLE

13.0, 13.5, 14.0 suggested
ANY
AVAILABLE

7.7, 7.9, 8.1, 8.3,
8.5, 8.7, 8.9 suggested
+30.00 to
-30.00

in 0.25 steps
-0.25 to
-10.00

in 0.25 steps
1° to 180°
in 1° steps

Empirical Fitting Guide

Diameter Selection

  • Use the 14.5 diameter for normal-sized corneas
  • If a different diameter is desired, add 3.5 mm to the HVID to calculate the lens diameter

Base Curve Selection

  • Use the chart to select the base curve based on the diameter and average K reading

Power Determination

  • Use standard vertex adjustment to convert the spectacle Rx, or call our consultants and let us do it for you

Adjustments (when necessary)

  • When evaluating the fit of the lens, please provide our consultants with the following data:
    • Fit/movement (base curve evaluation)
    • Lens overlap (diameter evaluation)
    • Orientation, in 1° increments if possible
    • Over-refraction
  • We’ll calculate the Rx for you
BASE CURVE SELECTION CHART