It seems from the history that you are having red eyes of long duration, you are using contact lenses and you are a regular user of computer.
Red eyes is a common cause and can be caused by contact lens use or because of dryness of eyes resulting from excessive or over use of computer.
Red eyes because of conjunctivitis
is usually associated with watering, discharge and mild pain.
You need to undergo proper examination and evaluation by ophthalmologist to find out the underlying cause and treatment accordingly.
If the cause is because of conjunctivitis treatment is by antibiotic eye drops.Redness
because of contact lens usage is treated by artificial tear eye drops and reducing the contact lens usage or by replacing them if the lenses are old.
Redness because of computer usage is treated by artificial eye drops.