CELL System | Single Vision

Design

CELL System lenses are a large diameter, single vision lens that is a cylinder control, easy fit lens.

CELL System Fitting Guide
Lens Type | Single Vision
Diagnostic Lens Color | Green
  1. If using a fitting set select the diagnostic lens closest to the flat K. The base curve should be adjusted steeper or flatter until an alignment fluorescein pattern is noted centrally across the flat cornea.
  2. If designing from k reading data, order a lens that is 1/2 diopter flatter than median K. Use the SAM and FAP method to calculate contact lens power after vertexing spherical component of spectacle refraction.
  3. Ideal vertical movement of 2-3mm is imperative to achieve a healthy, comfortable fit.
  4. The ideal lift of the CELL Design should exhibit peripheral clearance when the lens is resting in its primary position (slight superior). If the .12 (average) edge lift of the diagnostic lens exhibits peripheral impingement, a .14 edge lift should be ordered. If the .12 edge lift diagnostic lens exhibits excessive clearance, a .10 edge lift should be ordered.
  5. The lens power can easily be calculated empirically by refraction over a diagnostic lens.