Cacicol20® in Corneal Wound Healing and Nerve Regeneration After Phototherapeutic Keratectomy

Inclusion Criteria: * Signed and dated informed consent, * Male or female aged ≥ 18 years, * Patient with recurrent erosions or epithelial dystrophies indicated for treatment by phototherapeutic keratectomy of the anterior cornea Exclusion Criteria: * In the affected eye: prior corneal surgery * In either eye: active ocular infection, glaucoma, or ocular hypertension * General history judged by the investigator to be incompatible with the study (life-threatening patient condition). * Known allergic hypersensitivity history to Poly(carboxyMethylGlucoseSulfate) or dextran. * Inability of patient to understand the study procedures and thus inability to give informed consent. * Participation in another clinical study within the last 3 months. * Already included once in this study (can only be included for one treated eye) Specific exclusion criteria for women * Known pregnancy (if uncertain pregnancy test will be performed) * Lactation * Women of childbearing potential without an effective method of contraception (oral contraceptive, intra-uterine device, subcutaneous contraceptive implant, vaginal ring) or women not hysterectomised, post-menopausal or surgically sterilized