{Reference Type}: Journal Article {Title}: Novel Effective Medical Therapy for Acanthamoeba Keratitis. {Author}: Di Zazzo A;De Gregorio C;Coassin M; {Journal}: Eye Contact Lens {Volume}: 50 {Issue}: 6 {Year}: 2024 Jun 1 {Factor}: 3.152 {DOI}: 10.1097/ICL.0000000000001092 {Abstract}: OBJECTIVE: To report first clinical use of novel medical treatment for Acanthamoeba keratitis.
METHODS: Interventional observational case series. Two patients with Acanthamoeba keratitis were unsuccessfully treated with polihexanide (PHMB) 0.02% and propamidine 0.1% for 6 weeks, then all were shifted in a compassionate use of PHMB 0.08% with novel standardized protocol. The postinterventional follow-up of patients was at least 7 months.
RESULTS: PHMB 0.08% eyedrops in a novel standardized protocol improved infection resolution and led to complete healing of the lesion after 4 weeks in the two cases. Corneal opacities and neovascularization decreased slowly, best-corrected visual acuity slightly improved and progressively increased in the further 7 months, and no infection recurrence occurred.
CONCLUSIONS: This preliminary report of two cases shows promising response to polihexanide 0.08% lowering drastically the illness duration, with reduced chance of recurrence, and mostly improving patients' quality of life.