There are many reasons of pain in eyes and few important ones are
1.Lack of sleep
2.Hypertension or Hypotension
3.Frequent upper resp.Tract infections like Sneezing,Sinusitis
4.Weak eye sight,conjunctivitis,Allergy
5.Overuse of eyes while studying,watching TV,Computers,Mobiles.
So identify the cause of your Eye pain
and treatment and management can be given accordingly.
You can use following Homoeopathic eyedrops for general Eye pain
CINERARIA EUPHRASIA EYE DROPS