Myopia, corneal sensation
Conditions
Interventions
Two groups:Proparacaine and lidocaine (gel) vs Proparacaine and hydroxypropyl-methylcellulose (gel) for 2 mins
Sponsors
Nil
Eligibility
Sex/Gender
Male
Age
18 Years to 90 Years
Inclusion criteria
Inclusion criteria: 1. Any persons greater than 18 years of age, requiring LASIK for refractive errors correction under topical anesthesia who agrees to participate in the study and in whom pain scores can be reliably assessed; 2. Cooperative enough to receive LASIK under topical anesthesia by gel / eye drops 3.Willing to participate and give a consent after full explanation of the aims, risks and benefits of the study.
Exclusion criteria
Exclusion criteria: 1. Patients with other ocular or systemic conditions, which are painful or require the regular use of analgesics; 2. Patients with medical, psychological and social conditions predisposing to a different perception of pain; 3. Patients who do not want to receive the gel during the LASIK procedure; 4. Patients not cooperative or patient with conditions that prevent them to cooperate to undergo the LASIK procedure under topical anesthesia by gel / eye drops; 5. Anisometropia > 1.5D.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pain scores during application of anaesthesia, during the procedure (application of lid speculum, flap creation and laser application).; | — |
Secondary
| Measure | Time frame |
|---|---|
| Overall acceptance of the procedure Complication related to pain or discomfort.; | — |
Countries
China
Contacts
Public ContactProf. Dennis SC Lam
Outcome results
None listed