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Gerull Labs LLC (G-Labs) Modern Vision Therapy resources for Apple iPad.

Eccentric Circles

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Eccentric Circles

Developed exclusively for Opto. Available now for iPad!


Eccentric Circles builds free-space fusion skills by practicing cross-viewing of an image‘‘‘. The patient receives feedback on fusion and focus by making the image appear 3D.

Two images are presented in the exercise, one with coloured rings, and the other with solid circles. See screenshots below.

How to Purchase: Available for FREE in Opto, the vision training app for iPad. Download Opto and find Eccentric Circles in the in-app library of exercises.

Required hardware: none

Modes: none


Like all activities in Opto, a report is generated including the date and duration of the exercise. A patient assessment is also recorded if the user is signed into his/her personal profile. 


Sample screenshots:


Download Opto for iPad to access the Eccentric Circles.