Comparison of the position of steep meridian by image guiding system (Verion) and manual marking technique.
Not Applicable
- Conditions
- Cataract
- Registration Number
- JPRN-UMIN000037098
- Lead Sponsor
- Medical Corporation Ohashi Eye Center
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up complete
- Sex
- All
- Target Recruitment
- 100
Inclusion Criteria
Not provided
Exclusion Criteria
Patient with intraoperative or postoperative complication, amblyopia, maculopathy, glaucoma, or uveitis which affects visual acuity.
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Preoperatively in the office difference of reference point which was decided manually under the slitlamp and 90 degrees position by image guiding system were measured and ratio of under 5 degrees and 10 degrees were calculated respectively. Then, difference between steep meridian decided manually and by image guiding system (Verion) were measured preoperatively and postoperatively. Ratio of errors under 5 degrees and 10 degrees are calculated respectively. Preoperative and postoperative visual acuity, refractive examination value, corneal astigmatism, and toric axis rotational error were assessed.
- Secondary Outcome Measures
Name Time Method