NCT02182921

Brief Summary

The purpose of this study is to evaluate the visual outcome of the cataract surgery, including best uncorrected and corrected visual acuity, spherical equivalent, wavefront aberration and other measurements.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20,000

participants targeted

Target at P75+ for all trials

Timeline
56mo left

Started Aug 2013

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress74%
Aug 2013Dec 2030

Study Start

First participant enrolled

August 1, 2013

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

June 24, 2014

Completed
14 days until next milestone

First Posted

Study publicly available on registry

July 8, 2014

Completed
12.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2030

Last Updated

August 28, 2024

Status Verified

August 1, 2024

Enrollment Period

13.3 years

First QC Date

June 24, 2014

Last Update Submit

August 27, 2024

Conditions

Outcome Measures

Primary Outcomes (4)

  • Change from baseline in visual acuity at one month after cataract surgery

    Follow-up until one month after surgery

  • Change from baseline in spherical equivalent at one month after cataract surgery

    Follow-up until one month after surgery

  • Change from baseline in visual acuity at six months after cataract surgery

    Follow-up until six months after surgery

  • Change from baseline in spherical equivalent at six months after cataract surgery

    Follow-up until six months after cataract surgery

Secondary Outcomes (6)

  • Change from baseline in wavefront aberration at one month after cataract surgery

    Follow-up until one month after surgery

  • Change from baseline in contrast sensitivity at one month after cataract surgery

    Follow-up until one month after surgery

  • Change from baseline in intraocular light scattering at one month after cataract surgery

    Follow-up until one month after surgery

  • Change from baseline in wavefront aberration at six months after cataract surgery

    Follow-up until six months after surgery

  • Change from baseline in contrast sensitivity at six months after cataract surgery

    Follow-up until six months after surgery

  • +1 more secondary outcomes

Other Outcomes (2)

  • The difference between attempted and achieved refractive correction at one month after cataract surgery

    Follow-up until one month after surgery

  • The difference between attempted and achieved refractive correction at six months after cataract surgery

    Follow-up until six months after surgery

Eligibility Criteria

AgeUp to 90 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Medical centre: Eye and ENT Hospital of Fudan University

You may qualify if:

  • Clinical diagnosis of cataract
  • Must be able to cooperate with the ophthalmic examination

You may not qualify if:

  • Clinical diagnosis of mental illness
  • Mentally disabled

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Eye and ENT Hospital of Fudan University

Shanghai, Shanghai Municipality, 200031, China

RECRUITING

Related Publications (8)

  • Zhou J, Chen Y, Meng J, Cheng K, Qi J, Du Y, Yao Y, Lu Y, He W, Zhu X. Comparative analysis of iris blood flow after first-eye and second-eye cataract surgeries: insights into increased pain perception in the second eye. BMJ Open Ophthalmol. 2025 Aug 19;10(1):e002162. doi: 10.1136/bmjophth-2025-002162.

  • Chen C, Zhou J, Cheng K, Hu X, Zhu M, Du Y, Meng J, Lu Y, He W, Zhu X. Lens position change following cataract surgery in eyes with thick lenses: an SS-OCT based study. Br J Ophthalmol. 2025 Sep 23;109(10):1120-1125. doi: 10.1136/bjo-2025-327414.

  • Yao Y, Meng J, He W, Zhang K, Wei L, Cheng K, Lu Y, Zhu X. Associations between anterior segment parameters and rotational stability of a plate-haptic toric intraocular lens. J Cataract Refract Surg. 2021 Nov 1;47(11):1436-1440. doi: 10.1097/j.jcrs.0000000000000653.

  • Lu Q, Wei L, He W, Zhang K, Wang J, Zhang Y, Rong X, Zhao Z, Cai L, He X, Wu J, Ding D, Lu Y, Zhu X. Lens Opacities Classification System III-based artificial intelligence program for automatic cataract grading. J Cataract Refract Surg. 2022 May 1;48(5):528-534. doi: 10.1097/j.jcrs.0000000000000790.

  • Zhu X, Lu Q, Yao Y, Xu X, Lu Y. Intraoperative Pain Sensation During Cataract Surgery: Why Does Timing Matter? Curr Eye Res. 2021 Jul;46(7):971-977. doi: 10.1080/02713683.2020.1857776. Epub 2020 Dec 15.

  • Lu Q, He W, Lu Y, Zhu X. Morphological features of anterior segment: factors influencing intraocular pressure after cataract surgery in nanophthalmos. Eye Vis (Lond). 2020 Sep 9;7:47. doi: 10.1186/s40662-020-00212-4. eCollection 2020.

  • Zhu X, Qi J, He W, Zhang S, Zhang K, Lu Q, Lu Y. Early transient intraocular pressure spike after cataract surgery in highly myopic cataract eyes and associated risk factors. Br J Ophthalmol. 2020 Aug;104(8):1137-1141. doi: 10.1136/bjophthalmol-2019-315117. Epub 2019 Nov 8.

  • Zhu X, He W, Zhang K, Lu Y. Factors influencing 1-year rotational stability of AcrySof Toric intraocular lenses. Br J Ophthalmol. 2016 Feb;100(2):263-8. doi: 10.1136/bjophthalmol-2015-306656. Epub 2015 Jun 18.

MeSH Terms

Conditions

Cataract

Condition Hierarchy (Ancestors)

Lens DiseasesEye Diseases

Study Officials

  • Yi Lu, MD

    Eye and ENT Hospital of Fudan University

    STUDY CHAIR
  • Xiangjia Zhu, MD

    Eye and ENT Hospital of Fudan University

    STUDY DIRECTOR
  • Jin Yang, MD

    Eye and ENT Hospital of Fudan University

    STUDY DIRECTOR
  • Keke Zhang, MD

    Eye and ENT Hospital of Fudan University

    PRINCIPAL INVESTIGATOR
  • Wenwen He, MD

    Eye and ENT Hospital of Fudan University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

June 24, 2014

First Posted

July 8, 2014

Study Start

August 1, 2013

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2030

Last Updated

August 28, 2024

Record last verified: 2024-08

Locations