Eye congestion, pain, redness and swelling are generally considered inflammation of the eye, which generally has two types of inflammation: aseptic inflammation and infectious inflammation. Infectious inflammation is mostly seen in bacterial infections, common ones are Staphylococcus aureus, Pseudomonas aeruginosa these infections can cause redness, pain, increased discharge, blurred vision and other manifestations of the eye, there is another kind of discharge is not much, mostly seen in watery fog, this kind of consideration is viral infection, mostly seen after the cold. The aseptic inflammation is mostly seen in allergy or uveitis, in this case there is no secretion from the tears but only aqueous overflow, blurred vision and also eye congestion, redness, swelling and pain, this identification is mainly to the ophthalmology slit lamp and microbiological culture for examination.