Comparison of two laser platforms of myopia vision correctio
- Conditions
- Health Condition 1: null- Patients opting for refractive surgery for correction of myopia and astigmatism
- Registration Number
- CTRI/2017/12/010946
- Lead Sponsor
- arayana Nethralaya
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Open to Recruitment
- Sex
- Not specified
- Target Recruitment
- 0
Patients should be between 18 to 50 years of age.
Patient must have stable myopia for a minimum period of one year (a change of 0.25D or less) as documented by prior clinical records or current spectacle correction.
Patient must have a corrected distance visual acuity (CDVA) of 0.8 or better
Patient must have a spherical equivalent refraction less than â??10D
Patient must have refractive astigmatism less than 3D
Patient must not have a central corneal thickness less than 480 micrometer
Patient must not have a calculated residual stromal bed thickness of less than 250 micrometer after the surgery
Patient must not have symptoms or signs of keratoconus, diabetes, collagen vascular disease, pregnancy, breastfeeding and any prior ocular surgery.
Patient must not have an interocular difference of more than 1.00 diopter of
spherical or 0.50 D of cylindrical refractive error.
Patient must not be on chronic systemic steroids or other medication that can affect wound healing.
Patient must not be allergic to primary or alternative medications.
Patient must not be using rigid contact lenses for the last three weeks or soft contact lenses for at least 1 week before the preoperative evaluation
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method ncorrected and distance visual acuity, Wavefront aberrometryTimepoint: Pre-surgery, 1 month, 3 month, 6 month
- Secondary Outcome Measures
Name Time Method Corneal tomography, Biomechanics of the cornea, ocular surface discomfort (OSDI score)Timepoint: Pre-surgery, 1 month, 3 month, 6 month