**3.3 Effect of field of view**

Table 3 presents the result of experiment on the effect of field of view (FOV). There are two types of FOV namely 1200 and 850 FOV. Statistical binomial test at 5% significant level shows the same result of visual symptoms effect experienced by users but at different proportion especially the eyestrain and dry and irritated eyes symptoms. For 120 degree of FOV, 63% of the users experienced dry and irritated eyes while only 50% of the users experienced it for 85 degree of FOV. 75% of the users experienced eyestrain symptom at 850 of FOV and 50% of the users experienced it at 1200 of FOV.


*p*> 0.05 ; N = 8

Table 3. Result of Experiment and Binomial Test of Visual Symptoms of Field of View

#### **3.4 Effect of flow rate of virtual object**

Table 4 shows the result of experiments on the effect of flow rate (FR) of virtual object on visual symptoms of the subjects. There are two types of flow rate studied, which are five


*p*> 0.05 ; N = 8

Table 4. Result of Experiment and Binomial Test of Visual Symptoms of Flow Rate (FR) of Virtual Object

second per piece (FR 5) and ten second per piece (FR 10); corresponding to virtual object in sight every five second and ten second respectively. Statistical binomial test at 5% significant level shows that both types of flow rates have an effect on the users, in which 75% of the users experienced symptoms of eyestrain and 50% of the users also experienced blurred vision and dry and irritated eyes symptoms.
