Corneal Endothelial Cell, Hard Nuclear Cataract, Progressive Cracking Technique
Conditions
Brief summary
Approximately 60 participants at Eye Hospital of Wenzhou Medical University during January,2017 to June 2021 will be enroll in our study. And dived them randomly into 2 groups:Progressive Cracking Technique (30 eyes) and Conventional Chop Technique (30 eyes) .
Interventions
PROCEDUREProgressive Cracking Technique
Performing the cataract surgery with our phaco chop-progressive cracking technique.
PROCEDUREConventional Chop Technique
Performing the cataract surgery with Conventional Chop Technique.
Sponsors
Yune Zhao
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
60 Years to 90 Years
Healthy volunteers
No
Inclusion criteria
* Cataract with Grade IV\ V nucleus sclerosis * Cataract surgery is planned * The operation was successful without any complications
Exclusion criteria
* Patients with other diseases that affect the corneal endothelium * Has a history of anterior segment surgery * Failure to cooperate with follow-up
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| corneal endothelial cell density | up to 1 months | the number of corneal endothelial cells per unit area. |
| Coefficient of variation of endothelial cells | up to 1 months | represents the variation coefficient of cell area |
| percentage of hexagonal cells of the cells marked | up to 1 months | represents the percentage of hexagon cells,the ideal value is above 50% |
| central corneal thickness | up to 1 months | thickness in micrometer |
Countries
China
Contacts
Primary ContactDandan Wang
Outcome results
None listed