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A study of the relationship between reading speed and head movement in normal subjects and patients with retinitis pigmentosa

A study of the relationship between reading speed and head movement in normal subjects and patients with retinitis pigmentosa

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1030240018
Enrollment
30
Registered
2024-04-08
Start date
2024-04-13
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Healthy subjects, Retinal pigmentosa Retinal Pigmentosa

Interventions

Controlled and uncontrolled head movement and reading speed measurements
Headquarter restriction

Sponsors

Niida Takahiro
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients already diagnosed with retinitis pigmentosa, with good visual acuity and less than 10 degrees of afferent visual field constriction 2) Healthy subjects without organic diseases

Exclusion criteria

Exclusion criteria: Normal subjects (1) Patients with organic diseases of the eye other than refractive error (2) Those with severe refractive error including astigmatism (3) Patients with disorders that interfere with head movement Retinitis pigmentosa (1) Patients with organic eye diseases that affect visual acuity (2) Patients with severe refractive error including astigmatism (3) Patients with disorders that interfere with head movement (4) Those with abnormalities of eye movement including abnormalities of binocular and vestibular functions (5) Those with a disability that makes it difficult to read Japanese documents

Design outcomes

Primary

MeasureTime frame
1) Comparison of reading speed between control and simulation groups under uncontrolled head movement 2) Comparison of reading speed of control and simulation groups under head movement control 3) Comparison of reading speed of control group with and without head movement control 4) Comparison of reading speed of simulation group with and without head movement control 5) Comparison of reading speed of control and RP groups under uncontrolled head movement (6) Comparison of reading speed of control and RP groups under head movement control (7) Comparison of reading speed of control group with and without head movement control (8) Comparison of reading speed of RP group with and without head movement control

Secondary

MeasureTime frame
1) Relationship between head movement and reading speed of the control group under uncontrolled head movement 2) Relationship between head movement and reading speed of the simulation group under uncontrolled head movement 3) Relationship between head movement and reading speed of the control group under uncontrolled head movement 4) Relationship between head motion and reading speed of the RP group under uncontrolled head motion

Contacts

Public ContactTakahiro Niida

International University of Health and Welfare

niida@iuhw.ac.jp+81-287-24-3642

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026