An observational study in Cataract, sponsored by Wenzhou Medical University. Active, not recruiting at 1 site in China. Per ClinicalTrials.gov, last updated 2025-03-24.
Sponsored by Wenzhou Medical University · Observational
This prospective study aims to compare the visual outcomes following the implantation of two different types of multifocal intraocular lenses (IOLs) in highly myopic patients. The study will evaluate visual quality, refractive outcomes, and patient satisfaction using various visual assessment techniques and subjective satisfaction surveys.
1,701 studies on the registry are indexed under Cataract; 230 are open to participants now.
This study's planned enrollment of 62 is below the median of 81 across 484 observational studies indexed under Cataract.
Browse Cataract studies →Wenzhou Medical University is the lead sponsor of 93 studies on the registry; 8 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Individuals who undergo micro-incision cataract surgery and implantation of targeted intraocular lenses at the Hangzhou Branch of Wenzhou Medical University Eye Hospital.
1: Patients are older than 18 years
2: The axial length (AL) measured by IOLMaster 700 is ≥26 mm
3: No anterior or posterior segment pathology that could potentially compromise visual potential (such as glaucoma, myopic traction maculopathy, corneal leukoma, etc.).
4: Able to understand, cooperate, and complete all follow - ups
Exclusion Criteria:
1: History of amblyopia
2: Retinal detachment in the same eye or the fellow eye
3: Presence of multiple peripheral retinal degenerative changes
4: History of previous ocular surgery
Implantation of PanOptix trifocal IOL
Other: No intervention
Implantation of Tecnis Symfony ZFR00 extended depth of focus IOL (Johnson \& Johnson)
Other: No intervention
No intervention
Defocus Curve
The defocus curve is a tool used to assess visual acuity, particularly widely applied in evaluating the performance of presbyopia-correcting intraocular lenses (IOLs). Its principle involves placing a series of positive and negative lenses of varying diopters in front of the patient's eyes to simulate different distances from near to far, thereby assessing the patient's visual acuity (VA) at each simulated distance.
Time frame: Three months after operation
Visual Questionnaire
A visual questionnaire is a tool used to assess patients' visual function and quality of life. It typically includes a series of questions covering various aspects such as visual acuity at different distances (e.g., distance, intermediate, and near vision), dependency on glasses, and the impact of vision on the quality of life. By using a visual questionnaire, one can understand the actual visual experience and satisfaction of patients after the implantation of an intraocular lens.
Time frame: Three months after operation
Plan to share: No
No publications or documents are linked to this record.
This study is active, not recruiting, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.
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Wenzhou Medical University