The right contact lens is out there.

CooperVision’s cross-cylinder calculator will help fit your astigmatic patients accurately and efficiently. Start by entering the spectacle and lens prescriptions and over-refraction. Then indicate the lens rotation, direction, and vertex. We’ll recommend a prescription and confirm that it agrees with the original spectacle correction.

Calculateur

Calculateur avec cylindres

  • Correction lunettes
  • +20.00 à -30.00
  • +20.00 à -20.00
  • 0 à 180
Enter spectacle correction in minus cylinder format
  • Correction lentilles
  • +20.00 à -30.00
  • +20.00 à -20.00
  • 0 à 180
Enter contact lens correction in minus cylinder format
  • Valeur de la sur réfraction
  • +20.00 à -30.00
  • +20.00 à -20.00
  • 0 à 180
Enter spectacle over-refraction in minus cylinder format
  • Enter rotation in degrees
  • Enter direction of rotation
  • Adjust as needed
Redémarrer

Suggested lens power

  • Sphère 0.00
  • Cylindre 0.00
  • Axe x0