Comparing different artificial tear drops on post operative ocular discomfort after photorefractive keratectomy.
Not Applicable
- Conditions
- hyperopia, myopia.mild or no visual impairment, binocular
- Registration Number
- IRCT2013060713567N2
- Lead Sponsor
- vice-chancellor for research Tehran University of Medical Sciences
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 118
Inclusion Criteria
Over 18 year of age, Less than 0.5 Diopter change in visual acuity in the previous year, Myopia -1.0 to -6.0, Astigmatism 0.75 to 3.0, Hyperopia +1.0to +4.0, Corneal stroma more than 450 micron, Pupil size less than 6mm. Exclusion criteria: Keratoconus, Herpetic keratitis, Corneal dystrophy, Corneal degeneration, Cataract, Glaucoma, Dry eye, Lag ophthalmos, Uveitis, Blepharitis, diabetes, Pregnancy, Breast feeding, Auto immune disease, Immunodeficiency, History of keloid formation.
Exclusion Criteria
Not provided
Study & Design
- Study Type
- interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Ocular discomfort (including pain, epiphora, foreign body sensation, blurred vision and photophobia). Timepoint: First and fourth day post operation. Method of measurement: Questionnaire.;Visual acuity. Timepoint: On the first, third and sixth month after surgery. Method of measurement: Snelen chart.;Aberrometry. Timepoint: Sixth months after surgery. Method of measurement: Aberrometer.;Corneal haze. Timepoint: On the first, third and sixth month after surgery. Method of measurement: Slit lamp.
- Secondary Outcome Measures
Name Time Method