Clinical Trial: Development of a Visio-behavioral Scale to Evaluate Visual Abilities of Patients With Profound Multiple Intellectual Disabilities (PLH-Vision)

Study Status: Not yet recruiting
Recruit Status: Not yet recruiting
Study Type: Observational

Official Title: Development of a Visio-behavioral Scale to Evaluate Visual Abilities of Patients With Profound Multiple Intellectual Disabilities (PLH-Vision)

Brief Summary:

The main objective of this study is to develop and validate a visio-behavioral scale of visual abilities for subjects with profound multiple intellectual disabilities.

The secondary objectives of the study are:

to validate the structure of the scale.
to evaluate the reproducibility of scale with the intra- and inter-examiners, and the influence of the different professions of examiners.
to evaluate the feasibility of visio-behavioral scale.
to evaluate the sensitivity to change.
to study the uniformity of use of the scale depending on the type of patients (age, disability level, pathology).
to study the prevalence of the visual disorder in profound multiple intellectual disabilities subjects.