Investigation of the causal relationship between preoperative factors, surgical techniques, and postoperative outcomes in phakic intraocular lens implantation

A Single-Center Retrospective Study on the Causal Relationships Between Preoperative Ocular Parameters and Surgical Techniques and Postoperative Outcomes in Phakic Intraocular Lens Implantation - Retrospective Single-Center Study on Factors Influencing Outcomes After Phakic IOL Implantation

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000058261

Enrollment

2000

Registered

2025-06-25

Start date

2025-06-25

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Myopia/Myopic astigmatism, Hyperopia/Hyperopic astigmatism

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who visited our institution for phakic intraocular lens implantation and subsequently underwent the procedure.

Exclusion criteria

Exclusion criteria: Cases with a history of other ocular diseases such as cataract, glaucoma, or uveitis, which were deemed unsuitable for surgery, as well as those in which adequate preoperative or postoperative examinations could not be performed.

Design outcomes

Primary

Measure	Time frame
The primary outcome is the positional relationship between the implanted lens and ocular structures, as measured by anterior segment optical coherence tomography (AS-OCT) at least one month postoperatively.	—

Secondary

Measure	Time frame
Visual acuity, refractive error, intraocular pressure, corneal endothelial cell density, and accommodative function.	—

Countries

Japan

Contacts

Public ContactShuntaro Tsunehiro

Sanno Hospital Eye Center

shuntaro.t@ihwg.jp03-3402-3151

Outcome results