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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04010422
Other study ID # 201904121RINC
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date May 15, 2019
Est. completion date December 31, 2023

Study information

Verified date April 2023
Source National Taiwan University Hospital
Contact Yi Ling Chien
Phone 886-2-2312-3456
Email ylchien@hotmail.com
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

This study will investigate the visual function in individuals with ASD, with a particular focus on the ocular surface condition and visual function assessment.


Description:

Anomalies in visual information processing can have a major effect on the life quality of individuals with autism spectrum disorders (ASD), including eye gaze abnormality, higher frequency of refractive errors (e.g., astigmatism, hypermetropia, and anisometropia), strabismus, abnormal blinking rate, disturbed eye movements that may be associated with or aggravated social communication deficits of ASD. However, little is known about the ocular surface conditions. This study will investigate the visual function in individuals with ASD, with a particular focus on the ocular surface condition. We plan to recruit 50 adults with ASD and 50 age-/sex-matched typically developing controls in this project, and perform visual function assessment.


Recruitment information / eligibility

Status Recruiting
Enrollment 100
Est. completion date December 31, 2023
Est. primary completion date December 31, 2023
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 20 Years and older
Eligibility ASD group: Inclusion Criteria: 1. Having a clinical diagnosis of autism spectrum disorder 2. Aged over 20 years; able to read and sign an informed consent form. 3. Clear conscious and can follow the instruction of opening eyes and movement toward all direction. Exclusion Criteria: 1. Unable to cooperate with the examinations. 2. Younger than 20 years old. TD group: Inclusion Criteria: 1. Aged over 20 years; able to read and sign an informed consent form. 2. Clear conscious and can follow the instruction of opening eyes and movement toward all direction. Exclusion Criteria: 1. Unable to cooperate with the examinations. 2. Younger than 20 years old. 3. Having a clinical diagnosis of autism spectrum disorder

Study Design


Intervention

Diagnostic Test:
no intervention
no intervention

Locations

Country Name City State
Taiwan National Taiwan University Hospital Taipei

Sponsors (1)

Lead Sponsor Collaborator
National Taiwan University Hospital

Country where clinical trial is conducted

Taiwan, 

Outcome

Type Measure Description Time frame Safety issue
Primary cornea innervation The participants will undergo HRT in vivo confocal microscopy. It is a laser scanning confocal microscope, operating by scanning a 670 nm laser beam in a raster pattern over the field of view. The system uses a high numerical aperture 63x objective lens (0.9 NA), and produces images with high contrast and better axial resolution (7.6 µm) than other in vivo confocal systems (9 µm for the TSCM and 24 µm for the Confoscan). The HRT-RCM provides new built-in software for 3D imaging of the corneal structure. Quantitative imaging of the subbasal nerve plexus could be per-formed by CCMetrics system, a custom software program developed at the University of Manchester. 30 min
Primary Blinking reflex Blinking rates manually calculated by two different research personnel and Tobii Pro X3-120 under two conditions: viewing preset film on the laptop and casual conversation with interviewer. 30 min
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