<unk>  <unk> , also known as ophthalmic<unk> , is shingles involving the eye or the surrounding area. Common signs include a rash of the forehead with swelling of the eyelid. There may also be eye pain and redness, inflammation of the conjunctiva, cornea or uvea, and sensitivity to light. Fever and tingling of the skin and allodynia near the eye may precede the rash. Complications may include visual impairment, increased pressure within the eye, chronic pain, and stroke. The underlying mechanism involves a reactivation of the latent varicella<unk>  virus (VZV) within the trigeminal ganglion supplying the ophthalmic nerve (the first division of the trigeminal nerve). Diagnosis is generally based on signs and symptoms. Alternatively, fluid collected from the rash may be analyzed for VZV DNA using real-time PCR. This test is rapid, easy to perform, and is highly sensitive and specific method for diagnosing this condition. Treatment is generally with antiviral pills such as acyclovir. Steroid eye drops and drops to dilate the pupil may also be used. The herpes<unk>  vaccine is recommended for prevention in those over the age of 50.<unk>  is the second most common manifestation of shingles, the first being involvement of skin of the thorax. Shingles affects up to one half million people in the United States per year, of which 10% to 25% is<unk> .
Herpes zoster ophthalmicus
Sympathetic ophthalmia
Ocular larva migrans
Vertigo
Oropouche fever
Adenoviral keratoconjunctivitis
Ocular rosacea
Herpes simplex keratitis