NCT06517095

Revised Capsular Polishing and Its Impact on the Positioning of the Intraocular Lens and Visual Quality Following Femtosecond Laser-assisted Cataract Surgery

• Status: Withdrawn
• Phase: N/A
• Study type: Interventional
• Enrollment: 0 (actual)
• Sponsor: Xi'an People's Hospital (Xi'an Fourth Hospital) · Academic / Other
• Sex: All
• Age: 50 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

This study aims to investigate the impact of improved capsular polishing on the long-term stability of effective lens position (ELP) and visual quality in patients following femtosecond laser-assisted cataract surgery combined with intraocular lens implantation. Throughout the follow-up period, changes in ELP were observed using OCT to measure the central corneal posterior surface to the IOL anterior surface. The contraction of the anterior capsule orifice was assessed through anterior segment photography, and its diameter and area were measured and analyzed using drawing software at each follow-up visit. Additionally, the investigators analyzed the correlation between the degree of anterior capsule orifice contraction and ELP, as well as examined whether ACO formed and its degree, PCO formation and its degree. Objective examination using OQAS II was conducted to measure PSF, MTF, OSI, and SR of patients; high-order aberrations including astigmatism, trifolium, and spherical aberration were measured by OPD-Scan III. Furthermore, the investigators investigated the correlation between ACO/PCO degrees and visual quality.

Conditions

• Cataract

Interventions

Type	Name	Description
PROCEDURE	improved capsular polishing	In the polished group,utilize the OVDs to partially fill the peripheral capsule, causing the central posterior capsule to bulge, and then employ the double-ended Whitman Shepherd capsular polisher to meticulously polish both the anterior and equator of the capsule. This process also allows for simultaneous polishing of a portion of the posterior capsule. By rotating the polisher 180°along one side, followed by switching ends to cover the remaining 180° range, even the main incision site can be effectively addressed due to its curved tip design.
PROCEDURE	the conventional I/A polishing	the conventional I/A polishing the capsule

Timeline

• Start date: 2023-01-01
• Primary completion: 2025-12-01
• Completion: 2025-12-01
• First posted: 2024-07-24
• Last updated: 2024-09-24

Locations

1 site across 1 country: China