Did these symptoms appear after some sort of injury or did this just happen on its own? Eyes that are red and watering can be due to a number of reasons, and it is best to visit an ophthalmologist, especially if you are not aware of what set off such a reaction.
An eye injury may or may not require medical treatment, but it is always better to be careful, as any delay might allow the damage to worsen, even to the point of losing your eyesight. The severity of an eye injury is not always immediately obvious - in some cases there might be no pain or redness and it might take weeks before vision starts to blur. There is also the possibility that a tiny foreign object has gotten lodged in your husband's eye, and it may continue to scratch and irritate the eye till it is removed, which may require professional help. One other possibility is an eye infection, most probably conjunctivitis, which is quite common. This is usually not serious and takes its own course, needing only some home remedies or over the counter treatment to provide relief from the symptoms, which include inflammation, burning, watering, and some discharge.
answered by G R