Pigmentary Retinopathy
Conditions
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
Detailed description
In this experiment, the investigators study the adaptive strategies developed by people with retinitis pigmentosa in the perception of figurative works of art. Peripheral vision is crucial for detecting objects and directing attention to the relevant areas of the environment, while central vision, of high spatial resolution, is especially essential for identifying the nature of objects. The integration of perceived information in peripheral vision and central vision makes it possible to quickly and effortlessly develop a spatial representation of the environment, to activate categorical knowledge on the observed scene and to relate the various objects perceived. However, with the progressive constriction of the visual field, the visual exploration of the subject RP can not be carried out with the strategies used by the healthy subjects, in which the targets of the saccades are in particular determined according to the information perceived in peripheral vision. Through the recording of eye movements, the investigators compare the differences in visual explorations of people with retinitis pigmentosa and healthy people with or without a simulated deficit.
Interventions
OTHEREye tracker
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
Sponsors
Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
Groupe 1 Inclusion Criteria: * 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
Exclusion criteria
* 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 Inclusion Criteria: * 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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Eye movements | through study completion,, an average of 1 year | 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. |
| Fixation strategy | through study completion,, an average of 1 year | The fixation strategy characterized by the path of the gaze of the subjects on the screen to locate the targets. |
| Target location accuracy | through study completion,, an average of 1 year | Target location accuracy, defined by the distance between the point of re-fixation on the target and the actual position of the target |
Countries
France
Contacts
Primary ContactTania RILCY
Backup ContactHayet SERHANE
Outcome results
None listed