Herpes Symplex

The initial manifestation of corneal herpes can be a simple bacterial infection and be similar to a host of common eye diseases. Light pain, tearing, and light sensitivity are common symptoms. 

The swelling of the cornea will cloud vision, however herpes will not respond to antibiotics and the symptoms will worsen over time.

Frequently it can be observed in only one eye, and the infection induces mild corneal changes even disappearing without treatment. In very rare occasions, the virus will penetrate deeply into the cornea destroying the surface. The infection can be recurrent with increasing damage to the corneal surface. These recurrent infections can bring about ulceration and loss of sensitivity to the eye being touched. The herpes simplex virus can also provoke blood vessel growth to the cornea reducing vision or even robbing sight entirely. 

The ophthalmologist can prescribe an antiviral medication in the form of ointment or drops to be applied several times a day directly to the eye. 

Herpes Zoster Virus

This virus grows in the nerves and can gather in the skin producing lesions. This illness does not necessarily affect the eyes even when appearing on the face. However when the fifth cranial nerve is affected, this infection will probably extend to the eye. This infection produces pain, redness, and swelling of the eyelids.

An infected cornea can also be swollen and severely scarred. The structure behind the cornea can also be swollen (uveitis) and the pressure of the eye can also increase (glaucoma). The most common complications of the corneal infection include permanent glaucoma and loss off sensation in the eye.