Dry eyes syndrome. Prescribed together?

I have dry eyes syndrome and my screen time each day is 11 to 12 hours including phone and laptop as i am a student and i have to watch long lectures . I have been prescribed two eyes drops by a doc in my locality - 1st is haloeye pg and 2nd is lotemox- pf , i have been told to use both the eyedrops simultaneously in a gap of 5 minutes 4 times a day for two weeks , earlier i have used advance lube eye drop for around two months there was no such problem but two days back after using the drop i found some irritation and itching in my tear gland and im not sure it was due to the drop or my dry eyes , i searched on google and found out that lotemox pf eye drop is for bacterial infection, redness and inflammation but i have non of these , should i use both of the drops prescribed together? I also get light sensitivity and sometimes i have to shrink my eyes to see some small text or bright thing and i already wear power spects , i also have restricted eyeball rotation inmy left eye by birth