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Polymicrobial keratitis after a collagen cross-linking procedure with postoperative use of a contact lens: a case report.
Cornea. 2009 May; 28(4):474-6.C

Abstract

PURPOSE

: To report a case of polymicrobial keratitis caused by Streptococcus salivarius, Streptococcus oralis, and coagulase-negative Staphylococcus sp. in a patient who underwent collagen cross-linking for keratoconus.

METHOD

: Case report.

RESULT

: A 32-year-old male presented with a 1-day history of a painful red eye, occurring 3 days after he had undergone a collagen cross-linking with riboflavin and UV-A on his left eye for keratoconus. He admitted to removing his bandage contact lens and cleaning it in his mouth before reapplying it in his eye. On presentation, a severe keratitis with an 8-mm epithelial defect and 360-degree ring infiltrate was found. Culture results from his contact lens were positive for S. salivarius and S. oralis, and coagulase-negative Staphylococcus sp. were grown from his corneal scrapings.

CONCLUSIONS

: Collagen cross-linking is a promising procedure for the treatment of progressive keratoconus with minimal reported side effects. However, the possibility of a secondary infection after the procedure exists because the patient is subjected to epithelial debridement and the application of a soft contact lens. The role of the UV light on the immune mechanisms of the cornea and its effect on corneal wound healing warrant further investigation.

Authors+Show Affiliations

Corneal Unit, Sydney Eye Hospital, New South Wales, Australia.No affiliation info available

Pub Type(s)

Case Reports
Journal Article

Language

eng

PubMed ID

19411973

Citation

Zamora, Katherine V., and John J. Males. "Polymicrobial Keratitis After a Collagen Cross-linking Procedure With Postoperative Use of a Contact Lens: a Case Report." Cornea, vol. 28, no. 4, 2009, pp. 474-6.
Zamora KV, Males JJ. Polymicrobial keratitis after a collagen cross-linking procedure with postoperative use of a contact lens: a case report. Cornea. 2009;28(4):474-6.
Zamora, K. V., & Males, J. J. (2009). Polymicrobial keratitis after a collagen cross-linking procedure with postoperative use of a contact lens: a case report. Cornea, 28(4), 474-6. https://doi.org/10.1097/ICO.0b013e31818d381a
Zamora KV, Males JJ. Polymicrobial Keratitis After a Collagen Cross-linking Procedure With Postoperative Use of a Contact Lens: a Case Report. Cornea. 2009;28(4):474-6. PubMed PMID: 19411973.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Polymicrobial keratitis after a collagen cross-linking procedure with postoperative use of a contact lens: a case report. AU - Zamora,Katherine V, AU - Males,John J, PY - 2009/5/5/entrez PY - 2009/5/5/pubmed PY - 2009/8/8/medline SP - 474 EP - 6 JF - Cornea JO - Cornea VL - 28 IS - 4 N2 - PURPOSE: : To report a case of polymicrobial keratitis caused by Streptococcus salivarius, Streptococcus oralis, and coagulase-negative Staphylococcus sp. in a patient who underwent collagen cross-linking for keratoconus. METHOD: : Case report. RESULT: : A 32-year-old male presented with a 1-day history of a painful red eye, occurring 3 days after he had undergone a collagen cross-linking with riboflavin and UV-A on his left eye for keratoconus. He admitted to removing his bandage contact lens and cleaning it in his mouth before reapplying it in his eye. On presentation, a severe keratitis with an 8-mm epithelial defect and 360-degree ring infiltrate was found. Culture results from his contact lens were positive for S. salivarius and S. oralis, and coagulase-negative Staphylococcus sp. were grown from his corneal scrapings. CONCLUSIONS: : Collagen cross-linking is a promising procedure for the treatment of progressive keratoconus with minimal reported side effects. However, the possibility of a secondary infection after the procedure exists because the patient is subjected to epithelial debridement and the application of a soft contact lens. The role of the UV light on the immune mechanisms of the cornea and its effect on corneal wound healing warrant further investigation. SN - 1536-4798 UR - https://www.unboundmedicine.com/medline/citation/19411973/Polymicrobial_keratitis_after_a_collagen_cross_linking_procedure_with_postoperative_use_of_a_contact_lens:_a_case_report_ L2 - https://doi.org/10.1097/ICO.0b013e31818d381a DB - PRIME DP - Unbound Medicine ER -