Phototherapeutic keratectomy
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Complication-free phototherapeutic keratectomy with ablation profile 7mm x 5µm Ability to understand and sign informed consent
Exclusion criteria
Exclusion criteria: regular pain medication chronic pain further corneal diseases (which did not lead to phototherapeutic keratectomy) phototherapeutic keratectomy already performed on study eye or on other eye former ocular surgeries on study eye chronic or acute inflammation of anterior segment of the eye or former herpetic infection on study eye systemic diseases with reduced wound healing, z.B. diabetes, systemic Lupus erythematodes pregnancy, lactation period
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pain perception on numeric analog scale 0-10 at different points of time: 2 and 6 hours after operation and at 8:00 h in the first three postoperative days | — |
Secondary
| Measure | Time frame |
|---|---|
| Pain perception on visual analog scale 0-100 Assessment of sensoric pain component (short form of McGill Pain Questionnaire) Assessment of pain intensity (short form of McGill Pain Questionnaire) Epiphora on scale 0-3 Foreign body sensation on scale 0-3 Corneal erosion on third postoperative day Haze on third postoperative day Necessity of additional local or systemic pain medication Uncorrected (UDVA) and corrected discance visual acuity (CDVA) | — |
Countries
Germany
Contacts
Augenklinik des Universitätsklinikums Frankfurt am Main