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1.
Oxman  MNLevin  MJJohnson  GR  et al. Shingles Prevention Study Group, A vaccine to prevent herpes zoster and postherpetic neuralgia in older adults. N Engl J Med 2005;352 (22) 2271- 2284
PubMedArticle
2.
Nagpal  AVora  RMargolis  TPAcharya  NR Interstitial keratitis following varicella vaccination. Arch Ophthalmol 2009;127 (2) 222- 223
PubMedArticle
3.
Naseri  AGood  WVCunningham  ET  Jr Herpes zoster virus sclerokeratitis and anterior uveitis in a child following varicella vaccination. Am J Ophthalmol 2003;135 (3) 415- 417
PubMedArticle
4.
Naseri  AMargolis  TP Varicella zoster virus immune recovery stromal keratitis in a patient with AIDS. Br J Ophthalmol 2001;85 (11) 1390- 1391
PubMedArticle
Research Letters
August 2010

Exacerbation of Zoster Interstitial Keratitis After Zoster Vaccination in an Adult

Author Affiliations

Author Affiliations: F. I. Proctor Foundation and Department of Ophthalmology, University of California, San Francisco (Drs Khalifa and Margolis); and Sansum Family Medicine, Santa Barbara, California (Dr Jacoby).

Arch Ophthalmol. 2010;128(8):1079-1080. doi:10.1001/archophthalmol.2010.142

Two different forms of varicella-zoster virus (VZV) immunizations are available. Children are vaccinated with Varivax to reduce the risk of primary infection with VZV, and Zostavax is given to reduce the risk of VZV reactivation in adults. In a large prospective trial of adults older than 60 years, vaccination with Zostavax was shown to decrease the incidence of herpes zoster by 51.3% as well as to decrease the severity of the cases that occurred.1

Ocular complications of the childhood vaccine have been previously described,2,3 but the US Food and Drug Administration and the Centers for Disease Control and Prevention do not recognize a history of herpes zoster ophthalmicus (HZO) immunogenic stromal keratitis (interstitial keratitis [IK]) or iritis as a relative contraindication to adult vaccination. We describe a patient with marked worsening of VZV IK after receiving the Zostavax vaccine.

Report of a Case

A 50-year-old woman had left-sided HZO in 2002 that was initially treated with oral acyclovir at a dosage of 800 mg 5 times a day for 10 days. Four weeks later, she developed anterior stromal edema in the central and temporal cornea, trace cell and flare in the anterior chamber, and an intraocular pressure of 48 mm Hg. This was effectively treated with oral acyclovir at a dosage of 800 mg 5 times a day, topical loteprednol, 0.5%, 4 times a day, oral methazolamide at a dosage of 50 mg 3 times a day, topical brimonidine tartrate, 0.15%, 3 times a day, and topical bimatoprost, 0.03%, once nightly. Over the next 2 months, she stopped receiving all glaucoma medication and her treatment was tapered to oral acyclovir at a dosage of 400 mg twice a day and 1 drop of loteprednol, 0.5%, every other day.

Over the next 4 years, she had 7 mild asymptomatic episodes of IK detected on routine follow-up examination. In each case, the visual acuity was 20/30 or better; patchy infiltrates, 1 to 3 mm in diameter, were noted in the anterior, peripheral corneal stroma. Each episode resolved rapidly with frequent administration of topical loteprednol. Between episodes of stromal keratitis, she was managed on 1 drop or less of loteprednol. Each episode of stromal keratitis appeared to be unrelated to a recent taper of loteprednol. These episodes of stromal keratitis decreased in frequency over time.

In February 2007, 35 days after being vaccinated with Zostavax, she had a visual acuity of 20/80 OS, extensive epithelial edema, and diffuse stromal haze involving the lower two-thirds of the left cornea. The intraocular pressure was normal and there were no inflammatory cells in the anterior chamber.

Loteprednol administration was increased to 1 drop hourly, and treatment with oral valacyclovir hydrochloride at a dosage of 1 g 3 times a day was started. The cornea cleared rapidly with an associated improvement of visual acuity to 20/25. Loteprednol treatment was slowly tapered over 3 months and the patient was maintained on oral valacyclovir hydrochloride at a dosage of 500 mg twice a day and 1 drop of topical loteprednol every day until August 2008, when she had another asymptomatic and easily managed recurrence of IK in the left eye.

Comment

We report a case of severe worsening of HZO IK 35 days after vaccination with Zostavax. This exacerbation of the patient's IK was much worse than prior episodes. Given the immune pathogenesis of HZO IK and the temporal association of this episode of IK with recent VZV vaccination, it is likely that the more severe recurrence of stromal keratitis was a consequence of the increased VZV immune response elicited by the vaccine. The interval between vaccination and reactivation of the immunogenic stromal keratitis is consistent with the time needed for antigen processing and immune response.

The Centers for Disease Control and Prevention do not recognize VZV ocular inflammatory disease as a relative contraindication to vaccination with Zostavax. However, we previously reported a case of immune reconstitution VZV IK in a patient with AIDS4 and prior HZO and have been concerned that VZV vaccination might worsen immune-mediated VZV ocular disease in patients with a history of HZO. In patients with a history of HZO with or without ocular involvement, we recommend careful monitoring after they receive the zoster vaccine, especially at approximately 4 to 6 weeks after vaccination.

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Article Information

Correspondence: Dr Margolis, F. I. Proctor Foundation, Medical Sciences Bldg, Room S310, University of California, San Francisco, 513 Parnassus Ave, San Francisco, CA 94143-0412 (todd.margolis@ucsf.edu).

Financial Disclosure: None reported.

References
1.
Oxman  MNLevin  MJJohnson  GR  et al. Shingles Prevention Study Group, A vaccine to prevent herpes zoster and postherpetic neuralgia in older adults. N Engl J Med 2005;352 (22) 2271- 2284
PubMedArticle
2.
Nagpal  AVora  RMargolis  TPAcharya  NR Interstitial keratitis following varicella vaccination. Arch Ophthalmol 2009;127 (2) 222- 223
PubMedArticle
3.
Naseri  AGood  WVCunningham  ET  Jr Herpes zoster virus sclerokeratitis and anterior uveitis in a child following varicella vaccination. Am J Ophthalmol 2003;135 (3) 415- 417
PubMedArticle
4.
Naseri  AMargolis  TP Varicella zoster virus immune recovery stromal keratitis in a patient with AIDS. Br J Ophthalmol 2001;85 (11) 1390- 1391
PubMedArticle
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