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NCT Number: NCT06892470

Visual Quality of Cataract Patients with High Myopia After Implantation of Different Intraocular Lenses

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.

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This study is active but is not currently recruiting participants.

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Key information

Conditions

Cataract Eye Diseases Lens Diseases

Sex eligibility

All sexes

Study type

Observational

Primary location

Ophthalmology and Optometry Hos

Hanzhou, Zhejian, China

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Treatment and study plan

No intervention

Other

No intervention

Primary outcomes

  1. Defocus Curve

    Time frame: Three months after operation

    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.

  2. Visual Questionnaire

    Time frame: Three months after operation

    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.

Sponsors and collaborators

Lead sponsor

Wenzhou Medical University

Other

Registry information

Official study title

Assessment of Postoperative Visual Outcomes in Highly Myopic Patients Implanted with Different Intraocular Lenses

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Mar 24, 2025
Registry last updated
Mar 24, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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