Comparison of efficacy of two types of contact lenses on reducing pain and discomfort of patients after photorefractive keratectomy
Phase 2
- Conditions
- myopia, hyperopia.mild or no visual impairment, binocular
- Registration Number
- IRCT2013122413567N8
- Lead Sponsor
- Vice-Chancellor for research of Tehran University of Medical Sciences
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 120
Inclusion Criteria
Age 19 to 40 years old; refraction stability of at least 1 year; myopia of 8 diopter or less/astigmatism of 6 diopter or less; minimum corneal thickness of 480 micrometer in ultrasound pachymetry; minimum residual stromal thickness of 420 micrometer; corrected distant visual acuity equal or more than 20/20
Exclusion criteria: Ocular diseases such as cataract and glaucoma; corrected distant visual acuity of less than 20/20; diseases that could delay recovery such as diabetes mellitus, collagen vascular diseases, autoimmune diseases, herpetic eye infection and immune deficiency; history of colloid formation following previous surgeries
Exclusion Criteria
Not provided
Study & Design
- Study Type
- interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Pain. Timepoint: 1st postoperative day, 3rd postoperative day. Method of measurement: Questionnaire.;Epiphora. Timepoint: 1st postoperative day, 3rd postoperative day. Method of measurement: Questionnaire.;Foregin body sensation. Timepoint: 1st postoperative day, 3rd postoperative day. Method of measurement: Questionnaire.;Blurred vision. Timepoint: 1st postoperative day, 3rd postoperative day. Method of measurement: Questionnaire.;Photophobia. Timepoint: 1st postoperative day, 3rd postoperative day. Method of measurement: Questionnaire.
- Secondary Outcome Measures
Name Time Method Satisfaction. Timepoint: 1st postoperative day, 3rd postoperative day. Method of measurement: Questionnaire.