CompletedNot Applicable

Influence of Artificial Tears on Keratometry and Biometry Measurements With Different Devices

Germany145 participantsStarted 2020-11-20

Plain-language summary

The goal of this clinical trial is to learn about the influence of artificial tears on measurements of healthy eyes with three different devices. The main questions it aims to answer are: * Do artificial tears alter the measurements of the corneal surface * Is there a difference between the devices used in this study This is relevant because high quality measurements improve the postoperative outcome after cataract surgery.

Who can participate

Age range

18 Years – 80 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: * Healthy eyes Exclusion Criteria: * Any prior intraocular surgery or trauma * Any corneal pathology (ABMD, Fuch's, etc.) * Active ocular pathology (e.g., amblyopia, ARMD) * Contact lens wear within 2 weeks of study * Any corneal relaxing incisions or astigmatic keratotomy

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

Does the application of artificial tears (Artelac EDO) alter the measurement of the anterior surface of the cornea (K mean in Diopters) using devices that either use keratometry or Scheimpflug-technology (IOL Master 700, Pentacam AXL or Galilei G6)

Timeframe: Comparison between the baseline measurements and the measurements 30 seconds after artificial tear application

Trial details

NCT IDNCT06358456

SponsorUniversity Clinic Frankfurt

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2022-04-22

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