Embryo monitoring basically comprises of equipment which allow embryologists to record the development of the embryos inside at timed intervals..
Without the embryo monitoring equipment embryologists are still able to view and record the embryo’s development. However, these activities will be undertaken at longer intervals, and information relating to exactly when the embryo actually divided will be missing.
Also, it is necessary to remove the embryos from the incubator in order to inspect them. This in turn exposes them to a change in temperature and humidity which is not ideal.