Clinical trial Recruiting at 1 site Observational Ages 2 to 90

Examining the link between preoperative measurements and visual outcomes in cataract patients

Official title: Study of the Correlation Between Preoperative Precise Biometrics, Spatial Assessment and Postoperative Visual Quality in Cataract Patients

Run by Second Affiliated Hospital, Zhejiang University, School of Medicine · NCT04833491 · Data updated 2026-11-12

This study looks at how certain measurements taken before cataract surgery can help us understand how well patients see afterward.

Quick facts

Study typeObservational
Ages2 Years to 90 Years
SexAll
Enrollment1000 (estimated)
SponsorSecond Affiliated Hospital, Zhejiang University, School of Medicine
Academic / other
Locations1 site (Hangzhou)
StatusRecruiting
StartedApril 20, 2021
Main results expectedDecember 31, 2026
Study endsDecember 31, 2026
Registry record updatedMay 10, 2021
Trial IDNCT04833491 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include patients with monocular or binocular cataracts who require surgical intervention.

Probably not a fit

Patients with systemic diseases affecting vision, uncontrolled diabetes, or severe ocular conditions may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to analyze the relationship between precise preoperative biometrics and spatial assessments with the quality of vision experienced by patients after cataract surgery. By following patients prospectively, the study seeks to gather insights on the effectiveness of current cataract treatment methods and improve clinical practices. The focus is on enhancing the diagnosis and management of cataracts through detailed postoperative evaluations.

Why it matters

Potential benefit: If successful, this study could lead to improved surgical outcomes and visual quality for cataract patients.

How similar studies have gone: While similar studies have explored aspects of cataract surgery outcomes, this specific correlation between preoperative biometrics and postoperative visual quality is a novel approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with monocular or binocular cataract, lens opacity or abnormal position, need surgery

Exclusion Criteria:

* The history of systemic diseases and medication affecting vision, diabetic patients with systemic conditions complicated with retinopathy, uncontrolled blood glucose, severe eye diseases, eye trauma, eye surgery, severe dry eye and ocular surface diseases, strabismus and amblyopia were identified

Where it's running

  • Second Affiliated Hospital, Zhejiang University School of Medicine
    Hangzhou, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.