J Korean Ophthalmol Soc.  2021 Oct;62(10):1440-1444. 10.3341/jkos.2021.62.10.1440.

Streptococcus infantarius Endophthalmitis after XEN Gel Stent Implantation

• Kim DS
• Kim SH
• Choi Y
• Choi SK
• Lee JJ
• Park SW
• Byon IS

• KMID: 2521648
• DOI: http://doi.org/10.3341/jkos.2021.62.10.1440

Abstract

Purpose
To report a case of Streptococcus infantarius endophthalmitis related to the use of a XEN^® Gel Stent.
Case summary
A 75-year-old male was referred to our practice with a diagnosis of endophthalmitis 55 days after XEN^® Gel Stent implantation. He had primary open-angle glaucoma. Visual acuity was 20/50. Slit-lamp examination revealed conjunctival injection and anterior chamber inflammation with hypopyon. Fundus examination showed inflammatory cells with exudative materials in the vitreous. The aqueous sampling for culture of causative micro-organisms was followed by removal of the XEN^® Gel Stent, along with anterior chamber irrigation and intracameral and intravitreal injection of antibiotics. Streptococcus infantarius was isolated after 5 days. Vitrectomy, anterior chamber lavage, and intravitreal injection of antibiotics were additionally performed to control the intraocular inflammation. Sixteen days after vitrectomy, the intraocular inflammation disappeared. The choroidal detachment was resolved 34 days after vitrectomy. Visual improvement was limited to 20/100 at 6 months.
Conclusions
XEN^® Gel Stent-related bacterial endophthalmitis was successfully treated by implant removal, vitrectomy, and proper intraocular antibiotic treatment.

Keyword

Endophthalmitis, Streptococcus infantarius, XEN^® Gel Stent