Purpose: Systematic review of Gemella haemolysans  infection associated with ophthalmology, and to summarize the clinical characteristics of Gemellahaemolysans  keratitis after refractive surgery.
Methods: Case report and literature review.
Results: We report an 18-year-old man who developed corneal infection after Trans-PRK, and the culture results of lesion specimens confirmed G. haemolysans  keratitis. He was treated with fortified topical antibiotics, and clinical improvement was noted shortly after treatment. Resolution of keratitis was achieved at 1 month. Then, a systematic review of the reported cases of ocular G. haemolysans  infection was conducted. We summarized clinical manifestations of G. haemolysans  infection in cornea.
Conclusion: We reported a case of G. haemolysans  keratitis infection after refractive surgery, and reviewed the literature of ocular G. haemolysans  infection.
Keywords: trans-PRK, refractive surgery, postoperative infection, Gemella haemolysans , bacterial keratitis