Final answer:
The Schirmer Tear test is used to diagnose keratoconjunctivitis, particularly herpes keratitis, which is an ocular condition caused by the herpes simplex virus.
Step-by-step explanation:
The Schirmer Tear test is used to diagnose keratoconjunctivitis, particularly herpes keratitis, which is an ocular condition caused by the herpes simplex virus. Keratoconjunctivitis is characterized by irritation, excess tears, sensitivity to light, and the formation of deep lesions in the cornea, which can eventually lead to blindness. Laboratory testing is necessary to confirm the diagnosis when herpetic keratitis is suspected, and antiviral medications may be prescribed as treatment.