The Influence of Different Preoperative Decision Schemes on the Visual Quality After Toric Intraocular Lens Implantation

Recruitment of Participants Clinical Trial

Official title:

The Influence of Different Preoperative Decision Schemes on the Visual Quality After Toric Intraocular Lens Implantation

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04006912
• Other study ID #: xuwen2019-079
• Status: Recruiting
• Phase: N/A
• Start date: April 10, 2019
• Est. completion date: May 1, 2021

Study information

• Verified date: December 2020
• Source: Second Affiliated Hospital, School of Medicine, Zhejiang University
• Contact: Wen Xu, PHD
• Phone: +86 571 87783897
• Email: xuwen2003[@]zju.edu.cn
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

To study the Influence of Different Preoperative Decision Schemes on the Visual Quality After Toric Intraocular Lens Implantation

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 60
• Est. completion date: May 1, 2021
• Est. primary completion date: April 1, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 55 Years to 80 Years

Eligibility

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

Related Conditions & MeSH terms

• Recruitment of Participants

Intervention

Procedure:
• phacoemulsification and Toric intraocular lens implantation
A clear corneal incision is made in a different position

Locations

Country	Name	City	State
China	Second Affiliated Hospital, Zhejiang University School of Medicine	Hangzhou	Zhejiang

Sponsors (1)

Lead Sponsor	Collaborator
Second Affiliated Hospital, School of Medicine, Zhejiang University

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Actual residual astigmatism after surgery	The actual residual astigmatism value after the operation is measured with the phoropter	1 week postoperation
Primary	Actual residual astigmatism after surgery	The actual residual astigmatism value after the operation is measured with the phoropter	1 month postoperation
Primary	Actual residual astigmatism after surgery	The actual residual astigmatism value after the operation is measured with the phoropter	3 month postoperation
Secondary	uncorrected distance visual acuity (UDVA)	uncorrected distance visual acuity (UDVA) is observed in each group	1 week postoperation
Secondary	uncorrected distance visual acuity (UDVA)	uncorrected distance visual acuity (UDVA) is observed in each group	1 month postoperation
Secondary	uncorrected distance visual acuity (UDVA)	uncorrected distance visual acuity (UDVA) is observed in each group	3 month postoperation
Secondary	Theoretical residual astigmatism after surgery	The theoretical residual astigmatism is obtained by TECNIS Toric online calculator	1 week postoperation
Secondary	Theoretical residual astigmatism after surgery	The theoretical residual astigmatism is obtained by TECNIS Toric online calculator	1 month postoperation
Secondary	Theoretical residual astigmatism after surgery	The theoretical residual astigmatism is obtained by TECNIS Toric online calculator	3 month postoperation
Secondary	Postoperative Totic intraocular lens rotation angle	Postoperative Totic intraocular lens rotation angle is observed in each group	1 week postoperation
Secondary	Postoperative Totic intraocular lens rotation angle	Postoperative Totic intraocular lens rotation angle is observed in each group	1 month postoperation
Secondary	Postoperative Totic intraocular lens rotation angle	Postoperative Totic intraocular lens rotation angle is observed in each group	3 month postoperation
Secondary	Postoperative astigmatism and astigmatism axial of cornea	Postoperative astigmatism and astigmatism axial of cornea are measured with Pentacam	1 week postoperation
Secondary	Postoperative astigmatism and astigmatism axial of cornea	Postoperative astigmatism and astigmatism axial of cornea are measured with Pentacam	1 month postoperation
Secondary	Postoperative astigmatism and astigmatism axial of cornea	Postoperative astigmatism and astigmatism axial of cornea are measured with Pentacam	3 month postoperation
Secondary	Corneal Aberrations	Corneal aberrations are measured with OPD-Scan ?	1 week postoperation
Secondary	Corneal Aberrations	Corneal aberrations are measured with OPD-Scan ?	1 month postoperation
Secondary	Corneal Aberrations	Corneal aberrations are measured with OPD-Scan ?	3 month postoperation