Effect of 1.8-mm Steep-axis Clear Corneal Incision on the Posterior Corneal Astigmatism in Candidates for Toric IOL Implantation
1 other identifier
observational
60
1 country
1
Brief Summary
we aimed to analyze the effects of cataract surgery using a 1.8-mm steep-axis clear corneal incision (CCI) on the posterior corneal surfaces based on the keratometry from the rotating Scheimpflug imaging device (Pentacam HR) in candidates for toric intraocular lens (IOL) implantation
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Feb 2017
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 30, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2018
CompletedFirst Submitted
Initial submission to the registry
June 8, 2021
CompletedFirst Posted
Study publicly available on registry
June 11, 2021
CompletedJune 11, 2021
June 1, 2021
1.2 years
June 8, 2021
June 8, 2021
Conditions
Outcome Measures
Primary Outcomes (1)
corneal astigmatism
postoperative anterior, posterior and total corneal astigmatism
post 1 month
Interventions
astigamatism at least 1 month after the cataract surgery
Eligibility Criteria
Patients, who underwent cataract surgery with a 1.8-mm steep-axis CCI at the Eye Center, the Second Affiliated Hospital of Zhejiang University
You may qualify if:
- patients aged at least 45 years old who were scheduled for cataract surgery; (2) regular corneal astigmatism ≥ 1.0 D; (3) the imaging quality parameter (QS) of Pentacam HR was "OK"; and (4) follow-up time ≥1.0 month.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Second Affiliated Hospital, Zhejiang University School of Medicine
Hangzhou, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 8, 2021
First Posted
June 11, 2021
Study Start
February 1, 2017
Primary Completion
March 30, 2018
Study Completion
May 1, 2018
Last Updated
June 11, 2021
Record last verified: 2021-06