Your symptoms look like allergic conjunctivitis from increased screen time..start using eyedrop winolap max once a day in addition to these eyedrops. May be u require mild steroids for short time also... For this examination is needed. Moxifloxacin 2 times won't help.
Next Steps
show to ophthalmologist to check for allergic conjunctivitis. and ask whether moxi is really needed or not.
Health Tips
minimise screen time as much as u can