Healthy eye study maps key angles for better surgery
NCT ID NCT04886219
First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This study looked at two important eye measurements—angle kappa and angle alpha—in 70 healthy adults. Researchers used eye exams and imaging to see how these angles relate to each other. The goal is to help eye doctors better plan surgeries like cataract or laser correction.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could help eye surgeons plan procedures like cataract or laser surgery more precisely by understanding normal eye anatomy.
- What could go wrong
- This is a small observational study in healthy people, so results may not apply to those with eye conditions. It does not test any treatment.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
-
70 people
The number who actually took part.
- Started
-
May 2021
- Finished
-
Oct 2021
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Healthy individuals without visual disorders
- Ages
-
18 years and older
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: \- Informed major subject not opposing to their participation in the study Exclusion Criteria: \- Subject with strabismus or organic ophthalmologic pathology
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for No eye disorder are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Hôpital Necker-Enfants Malades
Paris, 75015, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.