Recruitment of Participants
Conditions
Brief summary
To study the Influence of Different Preoperative Decision Schemes on the Visual Quality After Toric Intraocular Lens Implantation
Interventions
PROCEDUREphacoemulsification and Toric intraocular lens implantation
A clear corneal incision is made in a different position
Sponsors
Second Affiliated Hospital, School of Medicine, Zhejiang University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
55 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
1. Age-related cataract (age 55-80) 2. Corneal astigmatism is greater than 1.0D 3. Patients who are willing to implant Toric IOL
Exclusion criteria
1. Previous or present eye diseases, such as glaucoma, eye trauma, etc 2. High refractive error 3. Previous eye surgery 4. Irregular astigmatism of the cornea
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Actual residual astigmatism after surgery | 1 week postoperation | The actual residual astigmatism value after the operation is measured with the phoropter |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| uncorrected distance visual acuity (UDVA) | 1 week postoperation | uncorrected distance visual acuity (UDVA) is observed in each group |
| Theoretical residual astigmatism after surgery | 1 week postoperation | The theoretical residual astigmatism is obtained by TECNIS Toric online calculator |
| Postoperative Totic intraocular lens rotation angle | 1 week postoperation | Postoperative Totic intraocular lens rotation angle is observed in each group |
| Postoperative astigmatism and astigmatism axial of cornea | 1 week postoperation | Postoperative astigmatism and astigmatism axial of cornea are measured with Pentacam |
| Corneal Aberrations | 1 week postoperation | Corneal aberrations are measured with OPD-Scan Ⅲ |
Countries
China
Contacts
Primary ContactWen Xu, PHD
Outcome results
None listed