CompletedPhase 2

Clonidine Added Lidocaine in Intraocular Pressure and Hemodynamics Ocular in Sub-Tenon's and Peribulbar Anesthesia

80 participantsStarted 2013-05

Plain-language summary

Regional anesthesia in orbit can reduce ocular blood flow, increase in intraocular pressure (IOP) or the pharmacological action of local anesthetics. This study was conduced to evaluate the effects of clonidine added to lidocaine in IOP, ocular perfusion pressure (PPO) and ocular pulse amplitude (OPA) in patients undergoing cataract surgery under sub-Tenon's and peribulbar anesthesia.

Who can participate

Age range

30 Years – 86 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: * Adults between 30 and 86 years old * Both genders * Physical status ASA (American Society of Anesthesiologists) I and II * Cooperative patients undergoing cataract surgery by phacoemulsification Exclusion Criteria: * Patients with communication difficulties * Allergic to any medication protocol * Chronic therapy with clonidine * In use of antihypertensive medication * Diabetes * Glaucoma * Previous surgery in the same eye * Abnormalities in coagulation

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

Intraocular Pressure (IOP)

Timeframe: Within 10 minutes before the surgery procedure

Trial details

NCT IDNCT02733757

SponsorFederal University of Minas Gerais

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2015-10

Results submitted2020-08-11

View on ClinicalTrials.gov More Anesthesia trials