There are actually several possibilities for congested eyes and sore eyes. A common cause is a viral infection, which not only causes severe congestion in the white areas of the eyes, but may also be accompanied by tearing, foreign body sensation, and also more white or filmy eye stools and some blurred vision. The pain is mainly due to the infection of the cornea caused by the virus and photophobia. This is mainly due to a viral infection caused by a decrease in the body’s resistance and requires the use of antiviral medication. Iridocyclitis may also cause redness and pain in the eye, but there is no eye stool and the congestion is mainly in the periphery of the black eye. The pain is mainly due to an increase in intraocular pressure or pain caused by iritis. The other condition may be glaucoma, which is a painful swelling of the eye caused by elevated intraocular pressure and glaucoma, which also has conjunctival congestion at the onset, mainly mild congestion. The situation can be alleviated by the use of IOP-lowering drugs.