Case report
Polymicrobial and microsporidial keratitis in a patient using Boston scleral contact lens for Sjogren's syndrome and ocular cicatricial pemphigoid

https://doi.org/10.1016/j.clae.2012.10.082Get rights and content

Abstract

Aim

To report a rare case of microsporidial and polymicrobial keratitis in a patient with Sjogren's syndrome and ocular cicatricial pemphigoid.

Method

This is a descriptive case report. A 66-year-old lady diagnosed with Sjogren's syndrome (SS) and ocular cicatricial pemphigoid (OCP) presented to us with microbial keratitis after using a Boston sclera contact lens for a painful epithelial defect. After 9 days of medical treatment, she underwent therapeutic penetrating keratoplasty.

Results

10% potassium hydroxide and calcofluor white wet mount revealed microsporidial spores. Gram positive cocci and Gram variable bacilli on Gram stain were identified as Staphylococcus epidermidis and Corynebacterium accolens in culture. Histopathological examination of the corneal tissue confirmed the presence of microsporidial spores.

Conclusion

Microsporidal keratitis can occur in patients with severe ocular surface disease due to SS and OCP. Predisposing factors include dry eye, local and systemic immunosuppression and Boston scleral contact lens. Early surgical intervention may be needed to eradicate the infection.

Introduction

Sjogrens syndrome is a systemic autoimmune disease occurring more commonly in females and affecting the lacrimal and salivary glands causing dry eye and dry mouth [1]. Ocular cicatricial pemphigoid is a chronic cicatrizing autoimmune disease of the mucous membrane and skin occurring predominantly in females, due to auto antigens directed against α4β6 integrin in the epithelial basement membrane [2]. Each of these conditions has severe ocular surface disease requiring preservative free artificial tears, topical cyclosporine A, punctal plugs [3] and scleral contact lenses [4]. It is believed that these patients are at a higher risk of developing microbial keratitis [5].

Microsporidia are ubiquitous organisms causing systemic and ocular infections in humans [6]. Ocular features include superficial keratoconjunctivitis in immuno-suppressed persons and stromal keratitis in immuno-competent persons [6].

We describe the rare occurrence of microsporidial stromal keratitis with polymicrobial keratitis in a patient with secondary Sjogren's syndrome and ocular cicatricial pemphigoid who was using a Boston scleral contact lens.

Section snippets

Case report

A 66-year-old lady was diagnosed with ocular cicatricial pemphigoid (OCP) and secondary Sjogrens’ syndrome (SS) in 2004 and presented to the Cornea services at L V Prasad Eye Institute, Hyderabad, India with complaints of dryness in both eyes and loss of vision in the left eye. She had positive immunohistochemistry for OCP and the triad of dry eye, dry mouth and sero-negative rheumatoid arthritis with positive anti Ro and anti La titers and a positive lip biopsy. Her best-corrected visual

Discussion

Our patient was an HIV negative lady with Sjogren's syndrome and OCP, who developed a rapidly progressive polymicrobial keratitis with S. epidermidis, C. accolens and Microsporidia following use of a Boston scleral contact lens.

Patients with ocular surface disease are at an increased risk of developing microbial keratitis [5]. S. epidermidis and Corynebacterium spp. are commensals present in the conjunctival sac [9] and hence this could be a potential source of infection in patients with severe

Conflict of interest

The authors have no financial or proprietary interest in any of the methods or materials used in this study.

References (18)

There are more references available in the full text version of this article.

Cited by (35)

  • CLEAR – Medical use of contact lenses

    2021, Contact Lens and Anterior Eye
    Citation Excerpt :

    Microbial keratitis after LASIK can be complicated by the location of the infection at the interface, making it more difficult to culture the organisms and preventing adequate penetration of the topical antibiotics [776]. A review of the literature in 2016 [777] described 11 cases of microbial keratitis associated with scleral lens wear published as retrospective case reports or case series over the previous 15 years [147,227,265,351,373,486,778]. For most of these, risk factors for infection were present including overnight wear, ocular surface disease, epithelial compromise, use of oral or topical corticosteroids, or poor compliance.

  • CLEAR - Contact lens complications

    2021, Contact Lens and Anterior Eye
  • CLEAR - Scleral lenses

    2021, Contact Lens and Anterior Eye
  • Conjunctival prolapse during open eye scleral lens wear

    2021, Contact Lens and Anterior Eye
    Citation Excerpt :

    Serious complications related to scleral lenses are rare [13] based on available published data [13], perhaps due to the relatively small number of lens wearers in comparison to other lens modalities [14]. Documented cases of microbial keratitis in scleral lens wearers have been attributed to poor hygiene and care and maintenance [15–19], but also often occur in compromised eyes potentially more susceptible to infection or complications (e.g. ocular cicatricial pemphigoid, graft versus host disease) [13]. The most common scleral lens related complications encountered in clinical practice relate to issues unique to scleral lenses that affect comfort or vision such as midday fogging, excessive lens decentration, lens seal off, limbal bearing, and conjunctival prolapse [20].

View all citing articles on Scopus
View full text