Development and Validation of the Observatory Battery of Common Eye Disorders for Adults With Intellectual Disability

Background:

Around 15% of the global population has some form of disability. Rights to obtain proper health care is an emphasis in the United Nationals Convention on the Right of People with Disability. Due to the importance of improving vision health for people with disabilities, studies on how to identify vision problems becomes extremely important in policy formulation for all countries. Among all types of disabilities, people with intellectual disability (ID) are among the ones where vision problems are the hardest to detect.

Currently, no caregiver assessable scales are available, as a result, adults with ID are at high risk of delayed diagnose for common ocular conditions. Objectives: This is a one-year project.

The objective of this study is two folds:

1. To develop an item bank of ocular conditions of adults with ID; 2. To develop a scale for caregivers to detect ocular conditions for adults with ID, and to validate the reliability, construct validity and responsiveness of the scale.

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Key information

Conditions

Intellectual Disability Mental Disorders Nervous System Diseases Neurobehavioral Manifestations Neurodevelopmental Disorders Neurologic Manifestations Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

20 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Care facility, New Taipei City, Taiwan

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Age 20 and above
Primary caregivers for at least one adult with ID (have disability identification or (and) certification).

Exclusion criteria

Unable to communicate in Mandarin or Taiwanese.(Primarycaregivers)
Unable to cooperate with eye examination.(ID)

Treatment and study plan

No intervention

Other

no intervention

Primary outcomes

Collection of Socioeconomic Data for Individuals with Disabilities

Time frame: 1-3 months

This study collects basic socioeconomic data of individuals with disabilities through tailored questionnaires, including gender, date of birth, educational background, living conditions, and employment status. The questionnaire is designed to accommodate the specific characteristics of individuals with intellectual disabilities and is completed by respondents or their proxies. These data will be analyzed to understand the impact of socioeconomic factors on the visual health and accessibility to medical services for people with disabilities. Ethical guidelines are strictly followed to ensure confidentiality and protect participant rights.
Assessment Scales for Individuals with Disabilities

Time frame: 1-3 months

This study utilizes validated assessment tools to evaluate the visual functions and daily living abilities of individuals with disabilities. These include the Activities of Daily Living (ADL) Scale and Instrumental Activities of Daily Living (IADL) Scale, supplemented by specific observational items for visual health and related functional behaviors. The scales employ a graded scoring system covering personal hygiene, mobility, social interaction, and visual challenges. The collected data will help analyze the impact of visual impairment on independent living skills and support the development of tailored visual intervention strategies. Participant privacy and ethical compliance are rigorously maintained.
Ophthalmologic Examination Form

Time frame: 1-3 months

A standardized ophthalmologic examination form is employed in this study to record detailed visual and eye health data of individuals with disabilities. The form includes uncorrected and corrected visual acuity, intraocular pressure, eye movement, corneal conditions, iris, macula, retina, and other ocular components. It also documents spherical power, cylindrical power, and axis to assess refractive correction needs. The form provides a section for medical recommendations such as eyeglass prescription, medical referral, or regular follow-up. These comprehensive data support analysis of visual problems' effects on individuals and guide the formulation of personalized visual intervention plans.

Study contacts

Contact information is provided by the study sponsor or research team.

Chiun-Ho Hou, Ph.D

CONTACT

[email protected]

+88623123456 ext. 262131

Sponsors and collaborators

Lead sponsor

National Taiwan University Hospital

Other

Registry information

Important dates

Study start: 2024
Primary completion: 2027
Study completion: 2027
First posted: Dec 17, 2024
Registry last updated: Apr 24, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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