The Influences Of Anterior Capsule Polishing On Anterior Capsular Changes and Intraocular Lenses Stability of Super High Myopic Eyes

Not Applicable

Completed

• Conditions: Myopia, High, With Cataract and Anterior Capsule Polished
• Interventions: Procedure: 360°anterior capsule polishing

• Registration Number: NCT03142269
• Lead Sponsor: yin ying zhao

Brief Summary

A prospective study included 20 patients with super high myopia who underwent bilateral uneventful cataract. 360°anterior capsule polishing was performed with double-ended capsule polisher randomly in one eye, and the opposite unpolished was used as the control. The refractive state and size of anterior opening were measured at postoperative 1 day as the baseline. Then they followed up at 1 month, 3 months and 6 months after surgery to record refractive state, higher-order aberrations, size of anterior opening, tilt and decentration of IOL (intraocular lenses)and PAD(postoperative aqueous depth). The paired t test was used to compare the differences between the two groups, and the same test the postoperative follow-up comparing with the baseline.

Detailed Description

Not available

Study Timeline

• Study Start: 2015-01-01
• Primary Completion: 2015-07-01
• Study Completion: 2016-07-31
• Study First Submitted: 2017-02-25
• Status Verified: 2017-05
• Study First Submitted QC: 2017-05-02
• Last Update Submitted: 2017-05-02
• Study First Posted: 2017-05-05
• Last Update Posted: 2017-05-05

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

cataract patients with super high myopia (axial length >27mm) and difference of binocular was less than 1mm

Exclusion Criteria

larger corneal astigmatism need toric intraocular lens; patients with any systemic or ocular diseases that may influence the anterior capsule opening morphologic, such as keratonosus, glaucoma, uveitis, Pseudoexfoliation syndrome, retinitis pigmentosa and diabetes and Myotonic Dystrophy, etc.; patients with ophthalmic surgery and trauma history.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
unpolished group	360°anterior capsule polishing	the opposite unpolished was used as the control
polished group	360°anterior capsule polishing	360°anterior capsule polishing was performed with double-ended capsule polisher randomly in one eye

Primary Outcome Measures

Name	Time	Method
refraction	Change from postoperative 1 day to 1 months	refractive state
Stability of IOL	Change from postoperative 1 months to 3 months	Tilt and Decentration
anterior opening size	Change from postoperative 1 day to 1 months	area,diameter

Secondary Outcome Measures

Name	Time	Method
anterior opening size	Change from postoperative 3 month to 6 months	area,diameter
refraction	Change from postoperative 3 month to 6 months	refractive state
Stability of IOL	Change from postoperative 3 month to 6 months	Tilt and Decentration