Pain reduction after Photorefractive keratectomy surgery.
Conditions
Interventions
Intervention 1: control group: In these patients, routine drugs such as chloramphenicol, betamethasone and artificial tears are used randomly in one eye every 8 hours for a month. Intervention 2: Inte
Sponsors
Ahvaz University of Medical Sciences
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Class I and II of the American Society of Anesthesiology People with refractive error myopia and regular astigmatism (both together or each one alone) The optical amount of the zone is 5.6 - 5.7 People with spherical equivalent maximum 3.5 diopters
Exclusion criteria
Exclusion criteria: Lack of consent to participate in the study Use of contact lenses in the last two months Presence of corneal scratch before surgery taking medication Corneal dystrophies The presence of any structural disorder of the eye Pathology and eye diseases Existence of systemic diseases (diabetes, vascular collagen disorder, etc.) People with hyperopia, amblyopia
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Visual Analog Scale (VAS). Timepoint: Immediately after the operation, 6, 12 and 24 hours. Method of measurement: It will be quantitatively recorded from 0 (no pain) to 5 (very intense pain that is excruciating). | — |
Secondary
| Measure | Time frame |
|---|---|
| Corneal scratch. Timepoint: Examination by hand-held slit lamp In the daily visits after the surgery (until the complete recovery of the corneal scratch) and then a re-visit will be done one week after the surgery. Method of measurement: Based on mm.;Time of onset of first pain. Timepoint: Based on the patient condition checklist. Method of measurement: Time of onset of first pain after surgery.;Patient's eye complaint. Timepoint: Based on the patient condition checklist. Method of measurement: subjectively and comparing binoculars. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactMaryam Hajizadeh
Ahvaz University of Medical Sciences
Outcome results
None listed