The effect of weighted contact lens on physiological nystagmus in young normal people

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20220119053761N1

Enrollment

Registered

2022-02-02

Start date

2022-04-21

Completion date

Unknown

Last updated

2022-02-07

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

Conditions

Vertigo.

Interventions

Intervention group: Using a weighted and conventional lens.

Eligibility

Sex/Gender

All

Age

18 Years to 25 Years

Inclusion criteria

Inclusion criteria: Age range between 18 and 25 years - No vision problems and eye movement muscles - No neurological and psychological problems - No use of drugs affecting the central system during the 48 hours before the test - No use of caffeine and alcohol in the 48 hours before the test - Absence of any spontaneous nystagmus

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Decrease of nystagmus SPV. Timepoint: At the beginning of the study and repeat it two weeks later. Method of measurement: videonystagmography(VNG) test.	—

Secondary

Measure	Time frame
Reduce of vertigo. Timepoint: During the initial evaluation and two weeks later. Method of measurement: VNG test.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMajid Ashrafi

Shahid Beheshti University of Medical Sciences

m_ashrafi@sbmu.ac.ir+98 21 7756 1721

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026