Vision Therapy: Convergence and Divergence is a application to support vision therapy, designed for home or in-office use. It includes fusion cards and variable tranaglyph for rehabilitation in cases of strabismus and accomodation disorders. The software was designed and programmed by optometrist Szymon Zielonka Ph.D., a vision therapist with many years of experience.

Main features:
- Exercise for central and peripheral fusion
- Images with different levels of detail
- 7 user-defined adjustable tranaglyph and 4 fusion cards
- Built-in flipper to reverse BI/BO demands

Use duochromatic glasses for exercises with tranaglyphs. Exercise should only be performed on the recommendation of an optometrist.