Yep....if it is getting green then it may be infection....but here is a bit on eye infections..... I had typed this for someone else a little while back that was having some eye issues. It may help you determine better......
Is it Conjunctivitis-Eye infection......ya know getting pink eye......
So here is everything I can think of......Conjunctivitis is an inflammation or infection of the conjunctiva...This is the tissue lining the eyelids and attaching to the eyeball near the cornea.
The conjunctiva can become irritated due to allergies induced by pollens, grasses, etc., or from infections caused by viruses, bacteria, or fungi.
If the white portion of the eyeball is also inflamed.......this condition is then referred to as 'pink eye.'
What are the symptoms?
The symptoms of conjunctivitis vary depending on the cause, but tpically, both allergies and infections cause a severe redness or 'meaty' appearance of the conjunctiva. Either allergies or infections cause the eye to discharge or 'weep.'
The important thing here is the consistency of the discharge, this tend to determine its cause.
Usually with infections caused by bacteria, fungi, etc., create a thick yellow or greenish eye discharge. The eyelids may actually stick together when held shut.
Allergies, on the other hand, generally cause a clear or watery discharge.
Regardless of the cause, a dog with true conjunctivitis will often squint and/or keep the third eyelid partially covering the eyeball. Conjunctivitis is usually painful and they will paw at or rub the eye against objects such as your leg or the carpet or just with their foot.
If you think it is infection then you need some eye meds from the vet.....If you think allergy then try the visine for a few days and it should help...........