5 | LIMITATIONS
There are still some limitations in this meta-analysis, firstly, due to
the novelty of IVR technology, there are fewer high-quality randomized
controlled trials based on IVR technology, and the intervention time is
not very long, so the sample size of the included studies is relatively
small, and a large number of studies will be needed in the future to
explore the effects of the long-term interventions; secondly, only
literature published in both Chinese and English was included, which is
limited in number, and may be limiting for the comprehensiveness of the
results; thirdly. Most of the IVR devices were not developed and
designed specifically for breast cancer patients and may not have fully
realized their intervention effects; fourth, some studies reported that
some patients experienced screen sickness symptoms such as nausea,
vomiting, and vertigo16 and claustrophobia in some
patients17. Fourth, some studies have reported that
some patients experienced screen sickness such as nausea, vomiting and
vertigo, and some experienced claustrophobia.