The Nidek M3 Autorefractor/Autokeratometer/non-contact tonometer is fully automatic, and uses three axes to track the eye. The M3 also adopts the advanced pupil zone imaging method for refraction measurement

The ARK-1a features retro-illumination, which reveals lenticular opacities that a patient may present with. It also has a multiple pupil zone imaging method, which gives a reliable refraction starting point.

The ARK-1s helps you quickly assess and document vision loss in your patients. It is one of the first autorefractor/keratometers that has glare testing available.

Wavefront technology measures the wavefront of light reflected from the retina and the refractive power with various sensors divided by sectors and analyzes them with precision.

The Keratometer KR-800 was developed under the guidance of the Ophtalmology and Optometry Center. This instrument gives an examination of the curvature radius of the anterior corneal surface, used to fit contact lenses and to monitor corneal changes produced through by wearing contact lenses. The Keratometer is occasionally used to assist in the recognition of certain corneal abnormalities and check the radius of curvature of both hard and soft contact lenses.

The KW-2000, combined autorefractor and keratometer, offers quick and easy objective measurements of the refractive error of the eye and provides data necessary for spectacle and contact lens fitting. It has the ability to connect with third party electronic health records (EHR)

With the ERK-5400 you can perform refractometry and keratometry alone or consecutively in a single mode.

The ERK-7800 combines all of the necessary visual pretesting functions in one smartly designed instrument. Operators can perform refractometry and keratometry alone or simultaneously. The ERK-7800 is also quick.

The HRK-9000A offers the world's first Contact Lens Fitting Guide with color camera. One of a kind, the device also offers a Meibomian Gland Analysis function and Tear Film Break Up Time (TFBUT) measurement.

The OZMA CRK-9000 Auto Refractor / Keratometer offers high precision measurements using Wavefront Technology and 3D Auto Tracking at an affordable price.