Auto Refractometer with Keratometer TW-9000K: an auto refractometer with built-in keratometer. It measures the refractive error and the corneal curvature (K values) of each eye objectively in one sitting, as a starting point for the subjective refraction with a phoropter or trial frame.
Where it fits in your practice
An auto refractometer with keratometer belongs in the pre-test area. The refraction reading shortens the subjective test, and the K values are used for contact lens fitting and to follow corneal astigmatism.
Ordering from Optinovate
- Supplied from the Netherlands to optical shops, optometry practices and clinics across Europe
- As the EU importer, we check the CE and MDR documents of each model before we deliver it
- A personal quote within 24 hours, with delivery time and VAT checked for your country (0% for businesses in another EU country with a valid VAT number)
- Questions about daily use? Ask us on WhatsApp or by email
Frequently asked questions
Does an auto refractometer replace the subjective refraction?
No. It gives a fast, objective starting point, which you then refine with a phoropter or trial frame.
What does the keratometer add?
It measures the curvature of the cornea in the same sitting, which you need for contact lens fitting.
See all auto refractometers or ask us which model fits your practice.




