Develops and manufactures soft and rigid gas-permeable contact lenses, custom-made products and materials in Schönkirchen near Kiel
Wöhlk Contactlinsen GmbH
Schönkirchen · Irdning (AT)New on Amplifa
About Wöhlk Contactlinsen
Wöhlk Contactlinsen GmbH is a German contact lens manufacturer headquartered in Schönkirchen near Kiel. Heinrich Wöhlk invented the modern rigid gas-permeable contact lens in 1946; since 1947 the company has been manufacturing lenses and to this day produces all lenses in its own plant in Schönkirchen. The product range includes soft exchange lenses (spherical, toric and multifocal daily and monthly exchange lenses), rigid gas-permeable lenses (RGP) as well as special series and custom-made lenses for individual eye shapes. The materials for individual lenses are produced in the company's own R&D department, and its own measuring instruments are also developed. Lens manufacturing uses mold production systems, an automatic conversion kit machine, Optocraft measurement technology and ultrasonic measurement; RGP lenses receive a plasma treatment. The product range is distributed via opticians and ophthalmologists, among others in cooperation with Carl Zeiss (ZEISS Contact Day 1), and as a subsidiary of SEED Co., Ltd. As a medical device manufacturer, the company maintains a quality system certified to MDR and EN ISO 13485.
- Site
- Schönkirchen
- Processes
- Manufacture of soft and rigid gas-permeable contact lenses (custom-made products and series), Mold manufacturing (casting/mold shell production) of soft lenses (spherical and toric exchange, Custom manufacturing of rigid lenses (RGP), Custom soft lens manufacturing (automated), Plasma treatment of RGP lenses, Optical measurement of lenses (Optocraft measurement technology), Ultrasonic measurement of soft lenses, In-house production of lens materials (research and development of new materials)
- Materials
- Vitafilcon A, High DK Material A120, Plexiglas (PMMA, historical), Silicone (Silflex lens, historical), Plexiglas (PMMA), Silicone (Silflex)
- Certificates
- MDR certificate, EN ISO 13485, MDR certificate (TÜV Rheinland, CE 0197)
- Founded
- 1947
- Industries
- Medical technology/optics, Contact lens manufacturing, Distribution via opticians and ophthalmologists
- 01
Research & development of proprietary materials
- 02
Mold manufacturing (mold shells) for soft lenses
- 03
Injection molding/casting production of the lenses
- 04
Plasma treatment for RGP lenses
- 05
Optical measurement (Optocraft) and ultrasonic measurement
- 06
Distribution via opticians and ophthalmologists
Materials & Processes
Vitafilcon A
Soft lens material, among other things for spherical, toric and multifocal monthly exchange lenses.
High DK Material A120
High oxygen-permeable material for contact lenses, introduced in 2017.
Plexiglas (PMMA)
Historical material of the first self-manufactured scleral shells and the Parabolar.
Silicone (Silflex)
Material of the silicone lens Silflex introduced in 1977.
Sites
Schönkirchen
DEHeadquarters, administration and contact lens production
- Lot size
- Custom-made products and series
- Materials
- Vitafilcon A, A120, RGP materials
- Production line for toric monthly exchange lenses
- Mold manufacturing system
- Automatic conversion kit machine
- Optocraft measurement technology
- Ultrasonic measurement
Irdning
ATSales (Wöhlk-Contact-Linsen-Vertriebs GmbH)
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of soft and rigid gas-permeable contact lenses (custom-made products and series)Plastics | – | – | – | – | Vitafilcon A, High DK Material A120, Plexiglas (historical), Silicone (Silflex, historical) |
| Mold manufacturing (casting/mold shell production) of soft lenses (spherical and toric exchangePlastics | – | – | – | – | Soft lens materials (e.g. Vitafilcon A) |
| Custom manufacturing of rigid lenses (RGP)Plastics | – | – | – | – | RGP materials |
| Custom soft lens manufacturing (automated)Plastics | – | – | – | – | Soft lens materials |
| Plasma treatment of RGP lensesSurface | – | – | – | – | RGP materials |
| Optical measurement of lenses (Optocraft measurement technology)Testing | – | – | – | – | – |
| Ultrasonic measurement of soft lensesTesting | – | – | – | – | – |
| In-house production of lens materials (research and development of new materials)Plastics | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Production line for exchange lenses (toric monthly exchange lenses) | – | – | – | 2000 | Schönkirchen |
| Mold manufacturing system | – | – | – | 2001 | Schönkirchen |
| Automatic conversion kit machine | – | – | – | 2015 | Schönkirchen |
| Optocraft measurement technology | Optocraft | – | – | 2013 | Schönkirchen |
Additional services
Reference customers
Quality
As a manufacturer of medical devices, Wöhlk maintains a quality assurance system that is monitored annually by the Notified Body (TÜV Rheinland LGA Products GmbH, CE 0197). In-house measuring instruments such as Optocraft measurement technology and ultrasonic measurement are partly developed in-house.
| Evidence | Schönkirchen |
|---|---|
| MDR certificate (TÜV Rheinland, CE 0197) | |
| EN ISO 13485 |