UbiVision Refraktion Sehtafel
* Warning: only usable by opticians / optometrists! *
The UbiVision Eyechart / Optotype App displays optotypes
to perform a subjective refraction by an optician / optometrist.
UbiVision is used for a randomizable visual acuity examination.
Optotypes will display on an TV screen via Apple TV 4, remotely controlled