Herpes in Eye Symptoms Every Patient Should Recognize

Herpes in the eye has two main patterns

Herpes in the eye usually follows one of two patterns: herpes simplex keratitis or herpes zoster ophthalmicus, also called eye shingles. Both can affect the surface of the eye and can threaten vision when inflammation or infection is not assessed.

Herpes simplex keratitis is an infection of the cornea, the clear dome covering the colored part of the eye. Herpes simplex virus, especially type 1, may also affect the eyelids and conjunctiva, the thin tissue covering the white part of the eye. Infection inside the eye is much less common.

Herpes zoster ophthalmicus is a reactivated varicella-zoster infection of the eye. Varicella-zoster is the virus that causes chickenpox and shingles. Eye shingles can affect the eyelids, conjunctiva, cornea, and deeper eye structures.

HSV-1 eye disease may first appear as eyelid inflammation, conjunctivitis, or corneal surface infection. Recurrent disease often involves ulcerative or stromal keratitis, which affects deeper corneal tissue. Ocular herpes is an infection that can recur, so a past episode matters when you describe your symptoms to an eye-care professional.

Understand how each infection reaches the eye

Herpes simplex and shingles reach the eye in different ways. Knowing that difference can help you describe what happened before your symptoms began, but it cannot identify the cause by itself.

• Both HSV type 1 and type 2 can spread to the eye, but type 1 is by far the more frequent cause of eye infections.
• HSV can reach the eye when you touch an active herpes lesion and then touch your eye. Transfer of type 2 HSV to the eye is rare.
• Varicella-zoster can remain dormant in nerve roots after the first infection. It may reactivate when immunity wanes with aging.
• Major risk factors for shingles include increasing age and immunosuppression, which means a weakened immune system.
• If shingles affects your forehead or nose, the same-side eye can also become infected in about half of people with that pattern.
• Eye involvement occurs in 10%–25% of people who have shingles, according to the cited CDC guidance.

Blisters on the nose can sometimes precede eye shingles because reactivation may involve the nasociliary branch of the trigeminal nerve. A skin rash makes eye shingles easier to recognize, but eye inflammation related to varicella-zoster can also occur without a visible rash. Mention any recent blisters, facial pain, or tingling when you seek care.

Recognize the seven symptoms that need attention

Herpes-related eye disease can look or feel different depending on the virus and the tissue involved. These seven symptom groups deserve attention, especially when several occur together or vision changes.

1. Eye pain or ache. HSV keratitis may cause eye pain. Eye shingles can cause an aching or painful eye, as well as pain or tingling across the forehead or nose.
2. Redness. HSV keratitis and eye shingles can both cause a red eye. Redness may occur with irritation, tearing, or pain.
3. Tearing. Watery eyes can occur with HSV keratitis and eye shingles. Tearing may accompany irritation from damage or inflammation on the corneal surface.
4. Sensitivity to bright light. HSV keratitis can cause light sensitivity.
5. Blurred or reduced vision. Eye shingles may cause blurred or reduced vision.
   It can also cause blisters on the forehead or nose. HSV eye disease may begin with eyelid inflammation or clear vesicles near the eye.
6. A branching corneal lesion. A recurrent HSV surface infection may begin with small, raised, clear vesicles that join into a branching lesion. A branching corneal ulcer that takes up fluorescein is a hallmark sign of HSV epithelial keratitis, but you cannot see this finding without an eye examination.

A first HSV eye infection can resemble ordinary conjunctivitis and often does not involve the cornea. That similarity is one reason redness alone does not tell you whether herpes is involved.

Do not mistake symptoms for a diagnosis

Ocular herpes can resemble other eye conditions, so symptoms alone cannot establish the diagnosis. A red, painful eye may have causes other than herpes. Pain with eye movement or trouble moving the eye can signal a more serious condition and needs prompt assessment.

The reason for taking suspected herpes seriously is the possibility of damage to the cornea or deeper eye structures. HSV keratitis commonly recurs, and repeated recurrences can cause corneal ulcers, scarring, abnormal blood-vessel growth, numbness, or reduced vision. Untreated HSV keratitis can lead to serious complications, including corneal scarring and blindness.

Eye shingles can affect the conjunctiva, cornea, uvea, retina, optic nerve, eyelids, eye pressure, or eye muscles. Keratitis occurs in approximately two thirds of people with eye shingles and often causes a corneal ulcer. Among people with eye shingles who develop eye disease, up to 25% develop chronic or recurrent disease.

Eye involvement occurs in 10%–25% of people with shingles, and complications may include lasting pain, facial scarring, or vision loss. Eye shingles can also cause inflammation, increased eye pressure, corneal numbness, scarring, or pain after the rash resolves.

These possibilities do not mean every red or painful eye has herpes. They do mean that persistent, worsening, or vision-changing symptoms should be assessed rather than explained away at home.

A branching or geographic corneal surface defect does not by itself prove HSV. The clinical differential includes other infectious causes, such as Acanthamoeba, varicella-zoster, adenovirus, Epstein-Barr virus, Chlamydia, and bacterial keratitis. Noninfectious causes can also produce similar surface patterns, including an abrasion, recurrent erosion, exposure-related damage, or neurotrophic keratopathy. An eye examination is therefore needed to match the visible lesion with the history and the rest of the findings.

Know what an eye examination checks

An eye examination for suspected ocular herpes starts with your symptom history and a careful look at the cornea and other visible eye tissues. Tell the eye-care professional when symptoms began, whether they have returned, and whether you have had facial blisters, a cold sore, or shingles.

The examination may include these steps:

• A corneal examination to look for surface damage, swelling, haze, or inflammation.
• Fluorescein testing, which places a dye on the eye so surface defects can be seen.
• A slit-lamp examination, which uses magnification and a focused beam of light to inspect the cornea, conjunctiva, eyelids, and other structures.
• Viral culture or a NAAT swab, a laboratory test that may help confirm suspected HSV keratitis in some cases.

In most cases, a branching dendritic lesion found during slit-lamp examination is enough to confirm HSV dendritic keratitis. Other forms of HSV disease rely more on the clinical history and examination findings.

A disc-shaped area of corneal swelling and haze can indicate disciform keratitis. Stromal keratitis can include corneal opacity, inflammation, and new blood vessels.

Doctors diagnose eye shingles by looking for evidence of shingles and eye involvement. Zoster-related eye inflammation can occur with or without a skin rash, so the absence of blisters does not settle the question. With an acute red eye and suspected herpes or varicella keratitis, an eye professional should perform fluorescein and slit-lamp examination and arrange urgent ophthalmology follow-up.

Understand why treatment depends on the tissue involved

Treatment for ocular herpes depends on which tissue is involved and what the examination shows. HSV keratitis is treated with topical or systemic antiviral medicines. The medicine and route are chosen according to the type and depth of corneal disease.

• Epithelial HSV keratitis, which affects the corneal surface, is treated with topical or oral antivirals, not steroids.
• Stromal HSV disease, which affects deeper corneal tissue, typically requires topical steroids together with antiviral treatment.
• Eye shingles treatment depends on the specific eye complication. Clinicians may use topical corticosteroids carefully for stromal keratitis or uveitis, with close monitoring.
• If herpes eye infections happen often, a doctor might prescribe a preventive antiviral medicine taken by mouth.
• Surgery is rarely needed for HSV keratitis. It may be considered when corneal scarring causes vision problems.

Do not choose between antiviral and steroid treatment based on symptoms alone. Active surface infection and deeper inflammation need different approaches, and steroid eye drops can worsen active viral replication when used without appropriate professional direction.

For HSV infection of the corneal surface, antiviral eye medicines and clinician-performed surface removal are treatments intended to shorten the illness. A review included 98 clinical trials involving 5,211 people with a corneal dendrite and examined placebo, antiviral, interferon, and surface-removal treatments. In that review, 25% of corneal dendrites healed spontaneously within one week with placebo, and slightly less than half healed by two weeks.

Some treatments can lower the severity and recurrence of HSV symptoms, but there is no cure for HSV. The purpose of treatment is to address the active problem and limit damage or recurrence under professional supervision.

Protect your eye while arranging prompt care

Suspected ocular herpes calls for prompt eye-care evaluation, particularly when you have pain, light sensitivity, reduced or blurred vision, or redness that is getting worse. If herpes eye symptoms return, see an ophthalmologist immediately.

While you arrange care, follow these boundaries:

• If you have an active cold sore or blister, avoid touching your eyes.
• Do not start steroid eye drops during an active surface infection unless an eye-care professional directs you to use them with antiviral treatment.
• Do not wait for a rash to appear if you have eye symptoms and a history of shingles or facial pain. Eye shingles can involve the eye with or without a skin eruption.
• If a clinician confirms or strongly suspects herpes or varicella keratitis, urgent ophthalmology follow-up should be arranged within 24–48 hours. If antiviral treatment is not started, ophthalmology consultation or follow-up should occur within 12 hours.

If shingles symptoms began within the past 72 hours, seek evaluation promptly because treatment for shingles is most effective within 72 hours of symptom onset. Early evaluation may help prevent worsening corneal involvement and possible vision loss.

These time frames do not mean you should wait until a deadline. Pain, light sensitivity, reduced vision, worsening redness, returning symptoms, or possible eye involvement with shingles are reasons to seek prompt qualified eye care.

Choose the next step for your eye symptoms

The main decision is simple: symptoms can raise concern for ocular herpes, but an examination determines whether herpes is involved and how urgently you need care. A qualified eye-care professional should decide the cause and treatment for your individual symptoms.

If you have eye pain, light sensitivity, vision changes, worsening redness, returning symptoms, or shingles near the eye, arrange an eye examination at Northwest Eye in Minnetonka.

What happens if ocular herpes keeps returning?

Can herpes in the eye happen without a rash?

Yes, eye inflammation related to varicella-zoster can occur without a visible skin rash. Eye pain, light sensitivity, redness, tearing, or vision changes still need prompt eye-care assessment, because symptoms alone cannot identify the cause.

How quickly should I seek care for suspected ocular herpes?

Seek prompt qualified eye care, especially for pain, light sensitivity, reduced or blurred vision, worsening redness, or shingles near the eye. If shingles symptoms began within the past 72 hours, evaluation is important because treatment is most effective during that period. Do not wait for symptoms to become severe or for a rash to appear.

Can ocular herpes come back after treatment?

Yes, HSV keratitis commonly recurs, and repeated episodes can damage the cornea and reduce vision. If infections happen often, a doctor might prescribe a preventive antiviral taken by mouth. Contact an eye-care professional promptly when symptoms return, rather than reusing old medicine or assuming the episode will resolve on its own.

Can I use steroid eye drops for herpes symptoms?

Do not start steroid eye drops for suspected ocular herpes unless an eye-care professional directs you to use them with appropriate antiviral treatment. Surface HSV infection and deeper inflammation require different treatment. Steroids can worsen active viral replication when used incorrectly, so an examination should guide whether they are appropriate.