Well, I know you are worried about your eyes, then let me briefly tell you the differences. So, as you can see, blocked tear duct is a problem with your tear duct, and it is generally not an infection, but if the problem is serious enough, it might be accompanied by infections, and the prominent symptom is constant watery eyes. On the other hand, eye infections could be various and they are typically more serious and may lead to permanent damage to your eyes. Just try to see a doctor if anything is wrong.
There is the big difference between the eye infection and blocked tear duct. As we know, the tear ducts sit near corner of the eyelids which is close to the part of nose. Sometimes the duct may have the blockage which will cause a person to have excessive tearing and frequent eye infections. The blockage of the tear ducts may result from an infection in eyes or poorly formed ducts, injury or medication use or other things. Besides the surgery which could help you cure the blocked tear ducts, there are home remedies for you to do. You could do the massage to help the blocked tear ducts. In addition, you could do the compress to relieve the blocked tear duct. And the eye infection means that your eyes get the bacterium and cause the discomfort in the cornea. You should treat it by using the eye drops with anti-inflammation role. The causes and treatment ways are different between the eye infection and blocked tear duct.