Understanding visual processing differences using short video tasks in adults with cerebral visual impairment

An observational pilot study comparing responses to short naturalistic video tasks in adults with cerebral visual impairment and control participants to investigate visual processing, stress, fatigue, and visual scene extraction

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN65080173

Enrollment

Registered

2026-05-20

Start date

2024-01-16

Completion date

Unknown

Last updated

2026-06-22

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

Conditions

Cerebral visual impairment (CVI) Nervous System Diseases

Interventions

Participants with cerebral visual impairment and control participants with typical vision will undergo ophthalmological screening assessment and structured question inventory assessment prior to parti

Eligibility

Sex/Gender

All

Age

18 Years to 120 Years

Inclusion criteria

Inclusion criteria: Adults with CVI group: 1. Established NHS diagnosis of cerebral visual impairment 2. Sufficient visual acuity to undertake the video tasks 3. Features consistent with dorsal stream dysfunction based on structured question inventory and ophthalmological assessment Control group: 1. Correctable typical visual acuity 2. No diagnosis of cerebral visual impairment 3. No evidence of features suggestive of cerebral visual impairment based on structured question inventory and ophthalmological assessment

Exclusion criteria

Exclusion criteria: 1. Significant uncorrected visual impairment preventing participation in the video tasks 2. Inability to complete the structured video viewing and question procedures For control participants: 1. Any evidence suggestive of cerebral visual impairment or dorsal stream dysfunction based on ophthalmological assessment and structured question inventory

Countries

Scotland, United Kingdom

Contacts

Public ContactHelen St Clair Tracy

hsct1@st-andrews.ac.uk-

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Jun 29, 2026