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Impact of cooled eye drops on pain perception after phototherapeutic keratectomy

Impact of cooled eye drops on pain perception after phototherapeutic keratectomy

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00031747
Enrollment
98
Registered
2023-05-03
Start date
2023-05-26
Completion date
Unknown
Last updated
2025-10-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Phototherapeutic keratectomy

Interventions

Group 1: Patients after phototherapeutic keratectomy, receiving cooled eye drops. Group 2: Patients after phototherapeutic keratectomy, receiving eye drops at room temperature.

Sponsors

Augenklinik des Universitätsklinikums Frankfurt am Main
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

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

MeasureTime 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

MeasureTime 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

Public ContactCarolin Kolb-Wetterau

Augenklinik des Universitätsklinikums Frankfurt am Main

Carolin.Kolb-Wetterau@kgu.de015115096218

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026