Comparing dexmedetomidine in topical versus peribulbar anesthesia for cataract surgery

Dexmedetomidine as an Additive to Topical Versus Peribulbar Anesthesia for Cataract Surgery

Phase 2 Interventional Kafrelsheikh University · NCT05692167

This study is testing whether adding dexmedetomidine to eye drops works better for pain relief during cataract surgery than using it with a shot around the eye.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment94 (estimated)
Ages21 Years to 65 Years
SexAll
SponsorKafrelsheikh University Academic / other
Locations1 site (Kafr Ash Shaykh, Kafrelsheikh)
Trial IDNCT05692167 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the effectiveness of dexmedetomidine as an additive to topical anesthesia compared to its use in peribulbar anesthesia during cataract surgery. The research will involve patients classified as ASA physical status I or II who are scheduled for eye surgery. By assessing the outcomes of both anesthesia methods, the study seeks to determine which approach provides better pain management and patient comfort. The methodology includes administering dexmedetomidine in both topical and regional forms and measuring various efficacy parameters.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older with ASA physical status classification I or II scheduled for cataract surgery.

Not a fit: Patients with contraindications to regional anesthesia, significant cardiovascular disease, or allergies to study medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance pain management and patient comfort during cataract surgery.

How similar studies have performed: Previous studies have shown promising results with dexmedetomidine as an adjuvant in regional anesthesia, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* American Society of Anesthesiologists (ASA) physical status classification I or II who scheduled for eye surgery

Exclusion Criteria:

* Patients who are younger than 18 years
* The usual contraindications for regional anesthesia such as patients refusing LA
* Clotting abnormalities
* Impaired mental status
* Allergy to any of the study medications
* patients had the severe cardiac disease
* chronic obstructive lung disease and a history of sleep apnea
* contraindications to the use of dexmedetomidine
* history or significant cardiovascular disease risk factors
* significant coronary artery disease or any known genetic predisposition
* history of any kind of drug allergy
* drug abuse
* psychological or other emotional problems
* special diet or lifestyle
* clinically significant abnormal findings in physical examination
* electrocardiographic (ECG) or laboratory screening
* known systemic disease requiring the use of anticoagulants.

Where this trial is running

Kafr Ash Shaykh, Kafrelsheikh

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions DexmedetomidineCataract SurgeryPeribulbarAnesthesia
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.