The Lamina Cribrosa (LC) Changes in the Eyes After Laser-Assisted in Situ Keratomileusis (LASIK)
Completed
- Conditions
- The Lamina Cribrosa and Optic Nerve Head Changes
- Interventions
- Device: Exposed to the high pressure during the surgery
- Registration Number
- NCT02676557
- Lead Sponsor
- Samsung Medical Center
- Brief Summary
The burden of LASIK surgery on optic nerve head (ONH) has been controversial. Until now, the change of retinal nerve fiber layer (RNFL) thickness was used as the indicator of the study. In the present study, the investigators intended to investigate whether the changes of the deep and superficial structures around ONH exist or not using EDI OCT.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 40
Inclusion Criteria
- the myopic patients who were supposed to undergo LASIK surgery in the Samsung Medical Center
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Exclusion Criteria
- Optic nerve head abnormalities at preoperative examination
- Previous ocular surgical history
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Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description LASIK Exposed to the high pressure during the surgery -
- Primary Outcome Measures
Name Time Method Change of optic nerve head (ONH) width before the surgery, postoperative 1 day, 1 week, 1 month, and 3 months micro millimeter
Change of lamina cribrosa (LC) depth before the surgery, postoperative 1 day, 1 week, 1 month, and 3 months micro millimeter
Change of lamina cribrosa (LC) thickness before the surgery, postoperative 1 day, 1 week, 1 month, and 3 months micro millimeter
- Secondary Outcome Measures
Name Time Method Change of optic nerve head minimum rim width before the surgery, postoperative 1 day, 1 week, 1 month, and 3 months micro millimeter