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Prismatic Lens-Induced Phoria Causes Changes in Cervical Mobility in Healthy Young Adults: a randomised study.

Prismatic Lens-Induced Phoria Causes Changes in Cervical Mobility in Healthy Young Adults: a randomised study.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00038827
Enrollment
87
Registered
2026-01-22
Start date
2025-01-23
Completion date
Unknown
Last updated
2026-02-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

M54.2

Interventions

Group 1: The participants were randomly divided into two experimental groups on which the lens was placed (dominant eye [D] and nondominant eye [ND]) and a control group (C). This latter group had a h

Sponsors

University of Turin
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 30 Years

Inclusion criteria

Inclusion criteria: Aged between 20 and 30 years

Exclusion criteria

Exclusion criteria: absence strabismus, nystagmus, corneal ectasias, suppression, diplopia, amblyopia, cervical hypomobility, cervical pain occurring in the last two weeks, pathologies affecting the intervertebral disc, arthritic processes of the cervical skeletal components, headaches of musculoskeletal origin, and dizziness

Design outcomes

Primary

MeasureTime frame
Cervical mobility tests with the inertial sensor were performed before and after the application of the prismatic lens. The tests were carried out with the participant seated and the sensor secured to the nape of the neck with a Velcro strap wrapped around the head. With an operator fixing the participant’s shoulders to prevent compensation during head movement in spatial planes, individuals were asked to perform the maximum range of head motion with the following sequence: rotation on both sides, flexion and extension, and lateral flexion on both sides. Before performing the second test, the prismatic lens base out was inserted into the frame with the base external to induce an outwards deviation of the optical axis on the dominant or nondominant eye depending on the group to which it belongs.

Secondary

MeasureTime frame
No secondary outcomes were predicted.

Countries

Italy

Contacts

Public ContactMarco Alessandria

eCampus

marco.alessandria@uniecampus.it+390000000

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 7, 2026