Testing microdrops of cyclopentolate for eye exams in children

Efficacy and Safety of Cyclopentolate Microdrops for Cycloplegic Refraction in Children: a Non-inferiority Crossover Randomized Controlled Trial

Phase 4 Interventional Aristotle University Of Thessaloniki · NCT06885242

This study is testing if tiny drops of a medication for eye exams work just as well and are safe for children compared to regular-sized drops.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment62 (estimated)
Ages4 Years to 16 Years
SexAll
SponsorAristotle University Of Thessaloniki Academic / other
Locations1 site (Thessaloniki)
Trial IDNCT06885242 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the efficacy and safety of microdrop instillation of cyclopentolate 1% compared to the standard drop method for cycloplegic refraction in children. It is a non-inferiority, crossover, randomized controlled trial where participants will receive either microdrops or standard drops in a randomized order. The study will assess the effectiveness of microdrops in achieving adequate cycloplegia and monitor any adverse events associated with both methods. Written informed consent will be obtained from parents or guardians for their children's participation.

Who should consider this trial

Good fit: Ideal candidates are children aged 4-16 years who need cycloplegic refraction measurements during routine ophthalmological examinations.

Not a fit: Patients who cannot cooperate with the autorefractometer or have known allergies to cyclopentolate will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective and less invasive method for conducting eye exams in children.

How similar studies have performed: Other studies have shown promising results with similar microdrop approaches, indicating potential for success in this trial.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Children aged 4-16 years old, who require cycloplegic refraction measurements in the context of regular ophthalmological examination as outpatients in the 2nd Department of Ophthalmology of AUTh at a tertiary center in Northern Greece.

Exclusion Criteria:

1. Inability for the child to cooperate with autorefractometer
2. Difficulties for the family to attend the follow-up visit
3. Known allergic reaction to cyclopentolate or to any of the other ingredients of this solution
4. Presence of any contraindication for the child to receive cyclopentolate eyedrops (e.g. neurological disease of concern)

Where this trial is running

Thessaloniki

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 Cycloplegic Refractionmicrodropscycloplegiarefractioncyclopentolatechildren
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.