An observation, not a finished answer
The dissertation describes early exploration of VR during adult cystoscopy. Participant feedback asked for more interaction. Those small observations were useful for design, but they were not proof of effectiveness or ineffectiveness for all adults.
A more specific question
Subsequent pediatric prototypes explored physical interaction. The design developed toward linking the real hand with the virtual environment, then toward a system that could respond to contextual information.
This history explains why tactile input and adaptation became important. It should not be used to claim that a different age group or procedure benefits more without a suitable study.
From development to comparison
The randomized venipuncture trial tested a combined adaptive and tactile approach against static VR. Publication makes that comparison traceable. It does not eliminate the need to evaluate new product versions and settings.
Keep the next question open
A responsible development story includes both progress and unresolved questions. New departments, repeated visits and recovery settings deserve their own evaluation rather than a copy of the original percentage.