a comparative study of tear film analysis in refractive surgeries
Not Applicable
Completed
- Conditions
- Health Condition 1: O- Medical and SurgicalHealth Condition 2: H188- Other specified disorders of cornea
- Registration Number
- CTRI/2022/08/044678
- Lead Sponsor
- Sankara eye hospital
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- Not specified
- Target Recruitment
- 63
Inclusion Criteria
1-Subjects seeking refractive surgery between 20 to 40 y of age with refractive errors that had been stable for at least one year
2-with a spherical equivalent between -1.00 to -8.00 diopters and less than -4.00 cylindrical astigmatism
3-normal corneal topography
4-without other eye diseases.
Exclusion Criteria
1-Patients unable to attend follow up visits
2-patients with previous eye surgery, or eye diseases that could alter the tear film
3-patients with systemic diseases and using drugs that could interfere with tear production
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method to analyze the effect of various refractive surgeries( PRK SBK AND FEMTO LASIK ) on tear filmTimepoint: pre operatively 1 week post operatively and 1 month post operatively
- Secondary Outcome Measures
Name Time Method Tear film analysis among photorefractive keratectomy , sub bowmans laser insitu keratomileusis and femtosecond assisted laser insitu keratomileusis preoperatively and post operativelyTimepoint: pre operatively 1 week post operative and 4 weeks post operatively