Hydrocyl Design

A high quality range of prescription soft torics, available in a choice of materials.


An ideal lens to use for patients with mild to high astigmatic prescriptions, this dynamically stabillised lens is available in a choice of materials, some of which can be tinted, ensuring a tailor made lens for every patient.

Whether the patient requires a tint to enhance their eye colour, assist with handling or change their iris colour, our wide range of reactive dye tints are available on our Hydrocyl designs in selected materials.

Please refer to our Pastel Tints sheets for available options.


  • Dynamic stabilisation using differential thinning
  • Back surface toric for maximum stability
  • Prism free ultra-thin optic zone
  • Inferior lid interaction to provide stable orientation
  • Thin tapered uniform edge profile
  • Lathe cut
  • Visibility tints available
  • Available in a range of pastel tints
  • Opaque tints available in 67% only


  • Large parameter range
  • Every prescription optimised for handling characteristics and oxygen transmissibility
  • Computer controlled lathes ensuring excellent reproducibility
Recommended care system is Quattro multipurpose solution by Abatron. Hydrogen peroxide or other multipurpose systems can be used on these lenses.  Please refer to out Pastel Tints sheet for recomendations for tinted lenses.
Material contamac_400 Based on Rx
Water Content Based on Rx
Permeability (Dk) Based on Rx
Base Curve (mm) 6.60 to 10.40 (0.20 steps)
Diameter (mm) 11.00 to 20.00 (0.50 steps)
Available base curves and diameters are restricted by materials.  Please refer to our Material Parameters sheet for available sizes


Power Range  -30.00D to +30.00D (0.25D Steps)
Higher powers may be available
Centre Thickness (mm) 14.50mm -3.00 = 0.12
Cyl Powers -6.00DC to -0.75DC (0.25D Steps)
Axis Direction 5o to 180o (5o steps)
Available to order as: Hydrocyl 38
Hydrocyl GMA
Hydrocyl 60
Hydrocyl 67
Hydrocyl SiH
Hydrocyl 77
  • Full refraction and eye examination
  • Keratometry
  • Select diameter required 2-3mm larger than HVID
  • Contact Cantor & Nissel to provide 'K' readings, spectacle Rx, BVD and diameter required

Good Fit

  • Comfortable
  • Good centration with full coverage of limbus, even in upward gaze
  • Adequate smooth movement in all directions of gaze
  • Good recovery on push-up test
  • Carry out over-refraction and order exchange lens if required

Flat Fit

  • May give poor centration
  • May give unstable vision
  • Can cause discomfort
  • Try steeper base curve (If available)
  • Over-refraction

Steep Fit

  • Displays inadequate or no movement
  • Resists push up test with lower lid
  • Can cause blanching
  • Try flatter base curve (If available)
  • Over-refraction

Toric markings on the inferior part of the lens 15o apart; central line should sit at 6o'clock.  Any deviation of lines should be noted when checking the fit of the lens and reported with over-refraction (if any) to Cantor & Nissel which will assist with an exchange lens order. hydrocyl_image

No fitting sets are available for the Hydrocyl range of lenses.

Optician looking to order? Call us on +44 (0)1280 702002

Register with Cantor and Nissel for our online ordering facility and be able to order the following lenses via our website: Cantor Prosthetic, Hydrocyl, Hydrofit, Hydrolens and Nissel Custom Hand Painted. The online forms with their drop down menus allow you to order lenses without the need to refer to any size or colour charts.