Impact of Visual Field Restriction on Visual Exploration

NCT04360291 | Unknown

• 2 other identifiers: P19-052019-A01198-49
• Study Type: observational
• Target: 45
• Locations: 1 country
• Sites: 1

Brief Summary

To communicate with the observer and guide his gaze on the canvas, painters have developed different stylistic processes that artists, in the manner of scientists, have acquired on the functioning of human visual perception. This direct communication between the artist and the observer is strongly impacted for people with visual impairments. In order to improve the accessibility and autonomy of visually impaired people in museums and to allow each observer to feel the visual and emotional experience closest to the original work of the artist, it is essential to identify the modifications. perceptive generated by the constriction of vision

Conditions

Pigmentary Retinopathy

Outcome Measures

Primary Outcomes (3)

• Eye movements

  Eye movements will be recorded by an eye trackervisual impairment whose peripheral visual field is masked They will be invited to observe scenes of human interaction presented on photographs, pictorial works or artificial scenes with or without prior instruction. In addition to the elementary variables recorded during the exploration by these subjects, such as the number, the amplitude or the orientation of the saccades, the sequence of fixations will be analyzed to define the exploratory strategy used.

  through study completion,, an average of 1 year

• Fixation strategy

  The fixation strategy characterized by the path of the gaze of the subjects on the screen to locate the targets.

  through study completion,, an average of 1 year

• Target location accuracy

  Target location accuracy, defined by the distance between the point of re-fixation on the target and the actual position of the target

  through study completion,, an average of 1 year

Study Arms (2)

Healthy volunteers

Healthy volunteers

Other: Eye tracker

Retinopathy pigment

Patients with retinopathy pigment

Other: Eye tracker

Interventions

Eye tracker OTHER

In visual search tasks, participants will sit in front of a screen and observe during each visual scene for a maximum of 45 seconds. Their eye movements will be recorded

Healthy volunteers; Retinopathy pigment

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Subjects with pigmentary retinopathy

You may qualify if:

• no visual pathology
• Age ≥ 18 and \<65 years
• Binocular visual acuity ≥8 / 10th or ≤ +0.10 logMAR
• Comprehension of the written and spoken French language
• Signed consent to participate in the study
• Health insurance affiliation
• Visit to an ophthalmologist less than a year old

You may not qualify if:

• Pregnant or lactating woman
• Ocular pathology that may interfere with planned assessments
• Treatment that may interfere with planned assessments
• Participation in another study that may interfere with this study.
• Severe pathology unbalanced or interfering with planned assessments.
• Neurological deficit including history of epileptic pathology, photosensitive epilepsy, sensory-motor coordination disorders, vestibular or cerebellar pathology
• Inability to give consent personally.
• Adults protected by law.
• Groupe 2
• Retinopathy pigmentary dystrophy rods-cones.
• Binocular visual acuity ≥4 / 10 (≤0.4 logMAR).
• Horizontal diameter of the residual Goldmann field of view ≤ 25 ° of binocular diameter at III4.
• Comprehension of the French language, written or oral.
• Signed consent
• Visual assessment less than 6 months old

Sponsors & Collaborators

• Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts: lead

Study Sites (1)

Institut de la vision

Paris, 75012, France

RECRUITING

MeSH Terms

Conditions

Retinitis Pigmentosa

Condition Hierarchy (Ancestors)

Eye Diseases, Hereditary; Eye Diseases; Retinal Dystrophies; Retinal Degeneration; Retinal Diseases; Genetic Diseases, Inborn; Congenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

• Avinoam Safran

  Institut de la vision

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Tania RILCY

CONTACT

+33 140021126; trilcy@15-20.fr

Hayet SERHANE

CONTACT

+33 140021144; hserhane@15-20.fr

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: October 23, 2019
• First Posted: April 24, 2020
• Study Start: November 4, 2019
• Primary Completion: September 11, 2020
• Study Completion: October 17, 2021
• Last Updated: April 24, 2020

Record last verified: 2020-04

Locations

FR (1)