Active — Not RecruitingNot Applicable

Comparison of the Effect of Capsular Bend on the Rotational Stability Between Two Toric Intraocular Lenses

China68 participantsStarted 2024-10-01

Plain-language summary

(1) To compare the difference of rotational stability and CBI between AcrySof IQ(SN6AT) and TECNIS(ZCU) after cataract surgery. (2) To evaluate the influence of capsular bending on the rotational stability of these two kinds of intraocular lenses.

Who can participate

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

.Pupil diameter \> 7 mm after mydriasis. 4.The astigmatism meridian between IOLMaster and Pentacam is the same (the meridian difference between the two instruments is within 15).
.After operation, the anterior capsule completely covered the edge of intraocular lens optical surface.
.Able to understand, cooperate and complete all follow-up.

Exclusion criteria

. Moderate and severe dry eye
. There is irregular corneal astigmatism.
. Combined with other ophthalmic diseases Previous history of ophthalmic surgery.
. The capsulorhexis is too large or eccentric, which can not cover the optical zone of intraocular lens all around, and there are intraoperative or postoperative complications.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Capsular bend index

Timeframe: 1-2 hours after operation, 1 day, 1 week, 1 month and 3 months.

IOL rotation degree

Timeframe: 1-2 hours after operation, 1 day, 1 week, 1 month and 3 months.

Toric IOL total axial deviation

Timeframe: 1-2 hours after operation, 1 day, 1 week, 1 month and 3 months.

Trial details

NCT IDNCT06707740

SponsorWenzhou Medical University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2025-12-30

View on ClinicalTrials.gov More Cataract trials

Who can participate

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

.Pupil diameter \> 7 mm after mydriasis. 4.The astigmatism meridian between IOLMaster and Pentacam is the same (the meridian difference between the two instruments is within 15).
.After operation, the anterior capsule completely covered the edge of intraocular lens optical surface.
.Able to understand, cooperate and complete all follow-up.

Exclusion criteria

. Moderate and severe dry eye
. There is irregular corneal astigmatism.
. Combined with other ophthalmic diseases Previous history of ophthalmic surgery.
. The capsulorhexis is too large or eccentric, which can not cover the optical zone of intraocular lens all around, and there are intraoperative or postoperative complications.