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ZEISS FOR EYE CARE PROFESSIONALS

ZEISS ClearView FSV Lenses

Stand out with stock that is definitely not standard.

With ZEISS ClearView FSV Lenses you can offer your customers all the benefits of freeform optimisation, at the same cost and delivery time frame of a stock lens.

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  • Freeform technology in FSV lenses
  • Thin and flat without optical compromise
  • On average 3× larger areas of excellent vision clarity

  • Freeform Finished Single Vision Lenses in stock

    Point-by-point design optimisation for a highly complex surface. This results in an FSV lens that is both very flat and thin and achieves excellent optics – with clear viewing from the lens centre to the periphery.

  • ZEISS UVProtect Technology

    ZEISS ClearView FSV Lenses come standard with ZEISS UVProtect Technology embedded in the lens material.

Standard FSV stock lenses compromise on optics.

With their distinct advantages of lower cost and fast delivery time, finished single vision (FSV) “stock” lenses are globally the most sold ophthalmic lens type. However, FSV lenses have fallen behind in one of the most important features for every spectacle lens wearer: they typically do not provide great optics away from the lens centre. In particular, the demand for flatter and thinner FSV lenses has compromised the peripheral optical performance.

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FSV stock lenses

Standard Spherical (SPH) Lenses

  • Optimised by using only 1 free parameter in the lens radius
  • Peripheral rays are more strongly refracted than rays at the lens centre (spherical aberrations) resulting in optical compromise
  • Any acceptably flat lens results in peripheral blur for the wearer

Good Aspherical (AS) Lenses

  • Optimised by using 5 free parameters in one meridian
  • One aspherical surface, usually on the front, but the back surface remains a simple toric (2 spheres at 90°)
  • Provides optics similar to SPH, while improving on flatness
  • When sph and cyl power increase, the same constraints result in increasing optical errors

Better Double Aspherical (DAS) Lenses

  • Optimised using 9 free parameters in two perpendicular meridians and blended in between
  • Replaces the toric back surface of an AS with 2 aspherical shapes perpendicular to each other (atoric)
  • Improvement on an AS design, but blended area still compromises the optics

Best Freeform Single Vision Lenses

  • Point-by-point lens design optimisation for a highly complex lens surface
  • The result is an FSV lens that is both very flat and thin and achieves excellent optics – with clear viewing from the lens centre to the periphery

ZEISS ClearView FSV Lenses

Inspired by customer demand

Customer demand comfort and clarity, but standard stock lenses compromise on optics.2 ZEISS tackled the big opportunity for optical improvement of conventional FSV lens designs by identifying a method to evaluate optical quality and improve lens optimisation.

A breakthrough in optics and aesthetics.

With ZEISS ClearView FSV Lenses, customers will experience excellent vision clarity from the lens centre to the periphery, in a lens that is flatter, thinner, and more attractive-looking than conventional lens designs that rely on steeper base curves to provide acceptable optical performance.

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A breakthrough in optics and aesthetics.

Freeform on stock

  • Point-by-point optimisation across the lens surface
  • 700 free calculation parameters in every lens design
  • Maximum level of optimisation

Up to 16% thinner

  • Up to 16% thinner3 than ZEISS spherical (SPH) FSV
  • Up to 8% thinner4 than ZEISS aspherical (AS) FSV - without compromising vision
  • Point-by-point optimisation and ZEISS ClearFormTM Manufacturing Technology allows for flatter lenses with a thickness reduction at the lens edge for minus lenses and in the lens centre for plus lenses

Up to 49% flatter

  • On average 36% flatter lenses across all prescription5 when compared to ZEISS AS 1.6 FSV
  • Up to 49% flatter lenses for the minus range6
  • Up to 25% flatter lenses for the plus range7
  • No optical compromises

3x larger zone of clarity

  • Clear viewing from the lens centre to periphery
  • On average 3x larger zone of excellent vision clarity when compared to ZEISS AS FSV lenses1
  • Up to 4.6x larger area for higher myopic prescription, and up to 5.1x larger area for higher hyperope prescriptions1

Proven customer satisfaction with ZEISS ClearView FSV Lenses

Confirmed by a wearer trial with single vision lens wearers using a blind product testing procedure, ZEISS ClearView FSV Lenses are proven superior to conventional FSV lenses.2
  • 100%

    had a very good/good immediate impression with ZEISS ClearView FSV.2

  • 78%

    After 1 week of wear, 78% of study participants preferred the vision performance of ZEISS ClearView FSV compared to ZEISS AS FSV.2

  • 89%

    of wearers strongly agreed or agreed that they had experienced all day visual comfort with ZEISS ClearView.2

  • 79%

    of wearers strongly agreed or agreed that ZEISS ClearView provides clear vision across the entire lens for near, intermediate and distance vision.2

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ClearForm® Technology freeform design for finished stock lenses

Technology explained.

  • ZEISS ClearView Lens Design

    Complex mathematical simulation tools are used to calculate the required mould designs.

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    Freeform Mould Generation

    The complete freeform shapes are incorporated into the moulds by using highly accurate numerically controlled (CNC) generators.

  •

    CMM Metrology Measurement

    Using ZEISS' industrial metrology expertise, final moulds are checked for accuracy and precision with a ZEISS coordinate measuring machine (CMM) where over 1500 points on the surface of each mould are analysed.

  •

    Specialised Mould Pairing

    Special optimisation of front and back mould pairings to deliver the complex free-form optics across the entire prescription range. 2D Data Matrix Code (DMC) is used in the manufacturing process to precisely track moulds and lenses as part of an automated industry 4.0 process.

  •

    Casting/Coating/Quality Checks

    Finally, finished lenses are checked by means of CMM against the ZEISS Vision Clarity Simulation to ensure the final delivers on the optical promise.

  • 1

    Based on a visual clarity simulation of a 50 mm diameter lens area for 1.60 index ZEISS ClearView FSV lenses compared to 1.60 ZEISS AS FSV lenses. Average of +5D, +3D, +1D, -1D, -3D, -5D, and -7D with and without a cylinder of -2D. Quantitative analyses by Technology & Innovation, Carl Zeiss Vision GmbH, 2020.
  • 2

    Study participants were asked to rate how important different aspects (“price”, “to see clearly across the entire lens”, “easy to adapt to”, “comfortable vision across the entire lens”, “aesthetics”, “available coatings”, “matches the frame”) are for them, when choosing new spectacle lenses. Wearer trial comparing 1.60 ZEISS ClearView FSV and 1.60 ZEISS AS FSV in a laboratory setup and in everyday life. N=20 study participants. Technology & Innovation, Carl Zeiss Vision GmbH, 2020.
  • 3

    Measurements of lens thickness on 1.60 ZEISS ClearView FSV lenses compared to ZEISS SPH FSV lenses over a range of prescriptions (-5, -3, -1, +1, +3, +5D with and without cyl -2D). Maximum reduction of 16% for centre thickness of +5.00/-2.00. Quantitative analyses by Technology & Innovation, Carl Zeiss Vision GmbH, 2020.
  • 4

    Measurements of lens thickness (edge thickness at 50mm diameter for minus lenses; center thickness for plus lenses) on 1.60 ZEISS ClearView FSV lenses compared to ZEISS AS FSV lenses over a range of prescriptions (-7, -5, -3, -1, +1, +3, +5D with and without cyl -2D). Maximum reduction of 8% for centre thickness of +3.00/0.00. Quantitative analyses by Technology & Innovation, Carl Zeiss Vision GmbH, 2020.
  • 5

    Measurements of lens flatness (base curve) on 1.60 ZEISS ClearView FSV lenses compared to ZEISS SPH FSV lenses over a range of prescriptions (-5, -3, -1, +1, +3, +5D with and without cyl -2D). Maximum reduction of 49% of -5.00D with and without cyl -2D. Quantitative analyses by Technology & Innovation, Carl Zeiss Vision GmbH, 2020.
  • 6

    Measurements of lens flatness (base curve) on 1.60 ZEISS ClearView FSV lenses compared to ZEISS AS FSV lenses over a range of prescriptions (-7,-5,-3,-1,+1,+3,+5D with and without cyl -2D). Maximum reduction of 32% for -5.00D with cyl -2D. Quantitative analyses by Technology & Innovation, Carl Zeiss Vision GmbH, 2020.
  • 7

    Measurements of lens flatness (base curve) on 1.60 ZEISS ClearView FSV Lenses compared to ZEISS SPH FSV Lenses. Average of -5D, -3D, -1D, +1D, +3D, +5D with and without cyl -2D. Maximum reduction of 49 % of -5.00D with and without -2D cyl for minus lenses. Maximum reduction of 25 % of 5.00D with and without -2D cyl for plus lenses. Quantitative analyses by Technology & Innovation, Carl Zeiss Vision GmbH, 2020.