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To study the Influence of Different Preoperative Decision Schemes on the Visual Quality After Toric Intraocular Lens Implantation
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Minimal residual theoretical astigmatism group | Experimental |
| |
| Steep meridian incision design group | Active Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| phacoemulsification and Toric intraocular lens implantation | Procedure | A clear corneal incision is made in a different position |
|
| Measure | Description | Time Frame |
|---|---|---|
| Actual residual astigmatism after surgery | The actual residual astigmatism value after the operation is measured with the phoropter | 1 week postoperation |
| Actual residual astigmatism after surgery | The actual residual astigmatism value after the operation is measured with the phoropter | 1 month postoperation |
| Actual residual astigmatism after surgery | The actual residual astigmatism value after the operation is measured with the phoropter | 3 month postoperation |
| Measure | Description | Time Frame |
|---|---|---|
| uncorrected distance visual acuity (UDVA) | uncorrected distance visual acuity (UDVA) is observed in each group | 1 week postoperation |
| uncorrected distance visual acuity (UDVA) | uncorrected distance visual acuity (UDVA) is observed in each group |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Wen Xu, PHD | Contact | +86 571 87783897 | xuwen2003@zju.edu.cn |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Second Affiliated Hospital, Zhejiang University School of Medicine | Recruiting | Hangzhou | Zhejiang | 310009 | China |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 35932419 | Derived | Yu X, Wang J, Lin X, Xu D, Ni S, Sheng S, Xu W. Effect of two different preoperative calculation schemes on visual outcomes of patients after toric intraocular lens implantation. Int Ophthalmol. 2023 Feb;43(2):491-501. doi: 10.1007/s10792-022-02447-7. Epub 2022 Aug 6. |
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| 1 month postoperation |
| uncorrected distance visual acuity (UDVA) | uncorrected distance visual acuity (UDVA) is observed in each group | 3 month postoperation |
| Theoretical residual astigmatism after surgery | The theoretical residual astigmatism is obtained by TECNIS Toric online calculator | 1 week postoperation |
| Theoretical residual astigmatism after surgery | The theoretical residual astigmatism is obtained by TECNIS Toric online calculator | 1 month postoperation |
| Theoretical residual astigmatism after surgery | The theoretical residual astigmatism is obtained by TECNIS Toric online calculator | 3 month postoperation |
| Postoperative Totic intraocular lens rotation angle | Postoperative Totic intraocular lens rotation angle is observed in each group | 1 week postoperation |
| Postoperative Totic intraocular lens rotation angle | Postoperative Totic intraocular lens rotation angle is observed in each group | 1 month postoperation |
| Postoperative Totic intraocular lens rotation angle | Postoperative Totic intraocular lens rotation angle is observed in each group | 3 month postoperation |
| Postoperative astigmatism and astigmatism axial of cornea | Postoperative astigmatism and astigmatism axial of cornea are measured with Pentacam | 1 week postoperation |
| Postoperative astigmatism and astigmatism axial of cornea | Postoperative astigmatism and astigmatism axial of cornea are measured with Pentacam | 1 month postoperation |
| Postoperative astigmatism and astigmatism axial of cornea | Postoperative astigmatism and astigmatism axial of cornea are measured with Pentacam | 3 month postoperation |
| Corneal Aberrations | Corneal aberrations are measured with OPD-Scan Ⅲ | 1 week postoperation |
| Corneal Aberrations | Corneal aberrations are measured with OPD-Scan Ⅲ | 1 month postoperation |
| Corneal Aberrations | Corneal aberrations are measured with OPD-Scan Ⅲ | 3 month postoperation |
| ID | Term |
|---|---|
| D018918 | Phacoemulsification |
| ID | Term |
|---|---|
| D002387 | Cataract Extraction |
| D054140 | Refractive Surgical Procedures |
| D013508 | Ophthalmologic Surgical Procedures |
| D013514 | Surgical Procedures, Operative |
| D059708 | Ultrasonic Surgical Procedures |
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