Do dual-focus multifocal contact lenses improve hand-eye coordination and sports vision compared with your usual lenses

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

Adults aged 18 to 38 who play baseball or softball and wear soft contact lenses will test their hand-eye coordination and sports vision while using their habitual lenses and again with dual-focus multifocal lenses. Participants will complete three study visits to compare visual performance in both lens types under standardized tasks. The study uses a within-subject design to directly compare performance with each lens type in realistic sports scenarios. Eligibility requires good eye health, clear distance vision with both lens types, and the ability to consent and attend all visits. Lead sponsorship is by Ohio State University College of Optometry in Columbus, OH.

Why it matters

Who can join: the full rules

Inclusion Criteria:

1. Adult, aged 18 to 38 with baseball or softball playing experience (high school or higher in the last 10 years)
2. Ability to give informed consent
3. Good general health defined by medication use that has not changed within the last 30 days and the absence of medical conditions or treatments that are deemed confounding to the data as determined by the Investigator
4. Current myopic spherical soft contact lens wearer with a prescription equivalent to the multifocal lens powers available
5. Visual acuity of 20/25 or better in each eye with current soft contact lenses
6. Visual acuity of 20/25 or better in each eye in multifocal contact lenses
7. Stereoacuity of 40" or better at 40 cm
8. Willing to spend time required for attending 3 study visits and wearing contact lenses on days between study visits
9. Any gender
10. Any racial or ethnic origin

Exclusion Criteria:

1. Current or active inflammation, infection, or eye disease as determined by the Investigator
2. A systemic condition that in the opinion of the investigator may affect a study outcome
3. Strabismus
4. Unable to successfully wear the MiSight contact lenses for the duration of the study
5. Females who are pregnant, lactating, or planning to conceive during the study
6. Use of systemic or topical medication that in the opinion of the investigator may affect a study outcome variable

Where it's running

• College of Optometry
  Columbus, Ohio, United States Recruiting

Study contacts

• Study coordinator: iVERG Reserch Group
• Email: OPT-EyeStudies@osu.edu
• Phone: 614-292-8858

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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.