Autorefractors and Autorefractor Keratometers
An autorefractor gives an objective starting point for refraction: it measures sphere, cylinder and axis in seconds, so the subjective refinement at the phoropter takes less chair time. Most tabletop units are autorefractor keratometers (ARKs) that also measure corneal curvature, which helps with contact lens fitting and with tracking corneal changes over time.
This page brings together every autorefractor US Ophthalmic offers in the US: tabletop autorefractor keratometers from our Ezer line and from Luxvision for the pre-test lane, and handheld and binocular mobile autorefractors, including the Ezer ERH-770 and the Adaptica 2WIN, for pediatrics, screenings and satellite offices. US Ophthalmic is a US provider of ophthalmic equipment; we manufacture the Ezer line and back it with an in-house technical department and spare-parts stock. Tell us how your lanes run and we will recommend a configuration with a quote.
How to choose an autorefractor
- Autorefractor or ARK: A plain autorefractor measures refractive error only. An autorefractor keratometer adds corneal curvature readings, so most practices that fit contact lenses choose the combined ARK.
- Tabletop or handheld: Tabletop units give the most repeatable readings in a fixed pre-test lane. Handheld and binocular mobile units go to the patient, which suits young children, wheelchair users, nursing-home visits and vision screenings.
- Alignment and capture: Automatic alignment and one-touch capture shorten the test and make results less dependent on who runs the instrument, which matters when technicians rotate.
- Measurement range and pupil size: Check the sphere and cylinder ranges and the minimum pupil size against your patient mix, especially if you see many high myopes, children or post-surgical eyes.
- Data connection: Confirm the unit can send results to your digital phoropter and EMR, so readings do not have to be typed in by hand.
- Service and parts: Ask who services the instrument in the US, how consumables and spare parts are supplied, and what the US warranty covers.
Browse autorefractors by type
Use the table to find the group that fits your practice, then open the category or model page for specifications.
| Type | Best for | Where to look |
|---|---|---|
| Tabletop autorefractor keratometers (Ezer ERK series, Luxvision LRK series) | Pre-test lanes that need fast, repeatable refraction and keratometry readings | This page |
| Handheld autorefractors (Ezer ERH-770) | Pediatrics, bedside and nursing-home exams, satellite offices | Portable Autorefractors |
| Binocular mobile autorefractors (Adaptica 2WIN) | Screenings and patients who cannot sit at a tabletop instrument | Portable Autorefractors |
| Digital and manual phoropters | Subjective refinement after the autorefractor reading | Phoropters & Refractors |
Frequently asked questions
What is the difference between an autorefractor and a keratometer? An autorefractor measures the eye's refractive error to give a starting prescription. A keratometer measures the curvature of the cornea. An autorefractor keratometer (ARK) does both in one instrument.
Does an autorefractor replace the phoropter? No. The autorefractor reading is an objective starting point; the final prescription is still refined subjectively at the phoropter.
Can a handheld autorefractor be used with children? Handheld and binocular mobile units are commonly used for children and other patients who cannot be positioned at a tabletop instrument. Check the model page for its measurement range and minimum pupil size.
Do you sell refurbished autorefractors? No. US Ophthalmic sells new equipment only. For a lower budget, check our open-box units, which are inspected and function-checked.
How do I get a quote? Request a quote with the models you are considering and how many lanes or rooms you are equipping, and we will come back with configurations, availability and lead times.
