That's if you get motion sickness. You'd get temporary discomfort, not myopia. But if you don't get motion sickness, then AR/VR provides the benefit of a greater focal distance than computer monitors, tablets, smartphones, etc.
Not everyone gets motion sickness though. I can use my VR headset for hours without discomfort from VAC.
From that publication:
The results of the study indicated that the visual acuity of employees who work with data glasses generally did not change over the course of a shift and over a period of six months. Nevertheless, there were groups that had an increased chance of deterioration. Eye strain was frequently reported after working with the data glasses.
Our study pointed out that employees aged 40 years and older are at risk for deteriorations of visual acuity, which is consistent with the findings of Yeow et al. (1991), who examined computer users.
