How Eye Dominance Affects Fusion in Healthy Adults

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

In orthoptics, fusional vergence measures how well the eyes fuse images. The study assigns the prism-bar test to either the dominant or non-dominant eye in a randomized order to see if dominant-eye testing yields greater fusion amplitudes. It also evaluates ocular dominance and basic orthoptic measures. The goal is to understand if eye dominance influences fusion assessment and rehabilitation planning.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adults between the ages of 18 and 35 with no known eye conditions, with or without ametropia. If ametropia is present: it must be corrected
* Subjects with no history of eye surgery, including refractive surgery
* Subjects who have been informed about the study and have freely and knowingly consented to participate in the study and to the collection of data

Exclusion Criteria:

* Subjects with strabismus
* Subjects with visual acuity of less than 20/20; or anisometropia

Where it's running

• Hôpital Necker-Enfants Malades
  Paris, France Recruiting

Study contacts

• Principal investigator: Maxence Rateaux, PhD — Assistance Publique - Hôpitaux de Paris
• Study coordinator: Maxence Rateaux, PhD
• Email: maxence.rateaux@aphp.fr
• Phone: 01 44 49 53 62

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.