Watering from the eyes can be a troublesome problem often needing one to keep wiping the eyes .
Tears are needed to keep the front surface of the eye healthy and maintain clear vision. However when the eyes are watery and filled with tears the eyesight may get temporarily blurred until the tears are wiped away or flow out.
Watering from the eyes by itself does not cause persistent decrease in vision.
However watering may be a symptom of other eye diseases which may affect the eyesight.