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Contact Lense Prescription Calculator | Gelcalc

Supplier: Gelflex Laboratories

GelCalc calculates the contact lens prescription from K Readings and Spectacle Prescription.

Price Guide: POA


  • Takes the guesswork out of lens calculations
  • Consistent results
  • Produces a comprehensive printout which can be faxed to Gelflex and filed with the patient record 


For RGP and Soft Lenses

  • RGP's: For Spheres, Back/Front/Bi Torics
  • Softs: Spheres and BP Torics
  • Tints and Shades for each product
  • Utilities: Allows for Calculation of the patients over lens RX

Very simple to use

  • K Readings can be in millimetres or dioptres
  • Automatically inverts to keep flatter meridian notationally on top
  • Allows plus cylinder notation
  • Can be faxed direct from GelCalc to the laboratory
  • Using Windows based fax software the printout can be redirected to the fax.

System Requirements

  • Windows 2000, or later.


  • Any Windows compatible printer.

Obtaining Gelcalc

  • Available without charge to practitioners.
  • To order Gelcalc Contact Gelflex Laboratories.