Power Refractor
To measure accommodation in real time
PowerRef 3 provides binocular, dynamic measurements of accommodation in sphere, convergence and pupil diameter changes in scotopic, mesopic and photopic conditions. It is a unique accommodation meter that is being used by scientists.

- Features
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- Binocular, dynamic measurements
- 50 measurements per second
- Contactless measurement
- Configurable result screen
- Integrable to own applications
- Modular structured system components
- Click here to download the PowerRef 3 specifications.
- Application
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- Measurement of the correlation of vergence and accommodation
- Determination of peripheral refraction
- Determination of the correlation of pupil diameter and accommodation
- Measurement of accommodation response time
- Measurement of scope of accommodation
- Alignment options
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Other than Plusoptix vision screening devices and Plusoptix binocular autorefractors this instrument is not designed for children age 6 months and older. Test person’s head need to be fixed in a chin rest. PowerRef 3 can be located outside of the line of sight by using a hot mirror. This way visual tasks can be offered to a test person in the open field.
Click here to download an overview of the alignment options.
- Accessories
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In order to ease a custom, research specific set-up, Plusoptix offers optional auxiliaries (chin rest, hot mirror apparatus, sliding rail with camera adapter, etc.).
Plusoptix offers complimentary training at its Nuremberg/Germany headquarters (airport code NUE). Scientists are welcome to schedule training at their convenience prior to or after taking their purchasing decision.