This clinical trial aims to compare the effectiveness of our adaptive, therapeutic game to the effectiveness of the same game, without the adaptive component. In the adaptive game, the game entry level is adapted to the visual perceptual capacities of the child, as defined by the visual perceptual profile. In addition, the difficulty level of the adaptive game will adapt itself to the gaming results and behaviour of the child. The non-adaptive version of the game consists of the same set of mini-games, but the entry-level is the same for all children (basic or 0 entry-level) and gradually increased, independent of the gaming results, success and behaviour of the child. The researchers will use a double-blind, randomized controlled trial design, including children with a developmental age between 3 and 12 years old, a diagnosis of CVI, acuity \>0.2, with sufficient manual coordination to control a mouse, keypad or touch screen. All children will use the gamified therapy program for three months, with a minimum of three times per week, 15- 20 minutes. A blinded evaluator will evaluate the effectiveness on the main components of the visual perceptual profile of the child (primary outcome), on eye tracking parameters, functional vision and quality of life, at the end and at three months follow-up. Enjoyment and user experience will be monitored closely during the intervention period. As usual and regular therapy of the children will not be influenced during the intervention period, we will ask the parents and/or caretaker to register all other relevant gaming and therapy activities performed during that period. It is hypothesized that children will benefit more from an individualized, adaptive training approach compared to the generic, non-adaptive version of the program.
Age range
3 Years – 12 Years
Sex
ALL
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Visual Perceptual Profile
Timeframe: pre-intervention (Day 0)
Visual Perceptual Profile
Timeframe: immediately post-intervention (after 3 months of training)
Visual Perceptual Profile
Timeframe: at 3 months follow-up (after 6 months)