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Taiwan J Ophthalmol. 2019 Apr-Jun;9(2):122-126. doi: 10.4103/tjo.tjo_84_17.

Bilateral cytomegalovirus retinitis comorbid with diabetic macular edema.

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Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.
Department of Ophthalmology, School of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.


Cytomegalovirus (CMV) retinitis comorbid with diabetic retinopathy is uncommon. We report a case of bilateral CMV retinitis and diabetic retinopathy in a patient who underwent pancreas transplantation and share the experience of the treatment outcome. An 18-year-old male diagnosed with type-1 diabetes mellitus received pancreas transplantation and immunosuppressive therapy suffered from progressively blurred vision in both eyes for several days. His visual acuity was 20/100 in the right eye and 20/50 in the left eye. Ophthalmic examination revealed bilateral diabetic macular edema (DME) without intraocular inflammatory signs in either eye. The DME subsided after 2 monthly intravitreal injections of aflibercept. However, bilateral panuveitis with CMV retinitis was observed after antivascular endothelial growth factor therapy. The retinitis subsided gradually but completely after systemic and intravitreal antiviral therapy. However, bilateral DME recurred and persisted despite repeated injections of aflibercept during the resting follow-up period. Our case suggests that CMV retinitis can coexist with other retinal diseases, including diabetic retinopathy. Treatment is difficult in such cases.


Cytomegalovirus; cytomegalovirus retinitis; diabetic macular edema; diabetic retinopathy; pancreas transplantation

Conflict of interest statement

The authors declare that there are no conflicts of interests of this paper.

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