UnknownNot Applicable

Predicting the Effect of Laser Peripheral Iridotomy

China200 participantsStarted 2020-07-01

Plain-language summary

This study will compare the angle parameters of patients with PACS before and after LPI. The investigators will analyze the results of patients with different angle closure mechanisms before and after LPI, and participants hope to find the structural parameters for predicting the effect of LPI.

Who can participate

Age range

20 Years

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

. Patient was diagnosed of primary angle closure angle suspect;
. received ultrasound Biomicroscopy before and after laser peripheral iridotomy;
. Voluntary participation in this study;
. Have enough language comprehension ability;
. Patient or his legal representative has sign the informed consent.

Exclusion criteria

. severe health problems resulting in a life expectancy of less than 1 year;
. previous intraocular surgery or penetrating eye injury;
. media opacity preventing laser peripheral iridotomy;
. Researchers think not suitable to participate in this clinical trial subjects;
. Refused to sign the informed consent.;
. There are important viscera function failure or other serious disease, including clinical related coronary artery disease, cardiovascular disease or myocardial infarction into the group of the first six months; serious neurological or psychiatric illness; serious infections; coagulant function abnormality; general active infectious diseases; malignant tumor; serious immune diseases.

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

the changes in anterior opening distance before and after LPI

Timeframe: between the baseline and 1 hour before discharge

Trial details

NCT IDNCT04495491

SponsorZhongshan Ophthalmic Center, Sun Yat-sen University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2020-12-31

Contact for this trial

Yuying Zhou, Master

8615270988097 2053552500@qq.com

View on ClinicalTrials.gov More Glaucoma trials