The Comparison of Visual Quality After Implantation of Monofocal and Multifocal Intraocular Lenses in Corneal Refractive Surgery Patients

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2500100297

Enrollment

Unknown

Registered

2025-04-07

Start date

2022-10-15

Completion date

Unknown

Last updated

2025-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cataract

Interventions

Bifocal IOL group:Bifocal IOL

Multifocal Intraocular Lens Group:Multifocal Intraocular Lens

Eligibility

Sex/Gender

All

Age

30 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1. A history of corneal refractive surgery for myopia correction. 2. Preoperative examination for cataract surgery with no contraindications. 3. No other ocular diseases affecting vision except for cataracts. 4. Ability to return for follow-up visits within 12 months after cataract surgery.

Exclusion criteria

Exclusion criteria: 1. Patients with corneal diseases, scleritis, or other ocular complications, as well as a history of previous ocular surgery. 2. Patients with severe mental or psychological disorders. 3. Patients who are unable to comply with the required postoperative follow-up visits.

Design outcomes

Primary

Measure	Time frame
visual acuity;corneal and ocular spherical aberration,coma and total higher-order aberration;Visual test;ocular scatter index, modulation transfer function cutoff, Strehl ratio;Quality of Vision Questionnaire;	—

Secondary

Measure	Time frame
refractive prediction error;	—

Countries

China

Contacts

Public ContactHuang Yusen

Qingdao Eye Hospital of Shandong First Medical University

huang_yusen@126.com+86 137 9180 2251

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026