Related Experiment Video
Updated: Aug 29, 2026
Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
Published on: June 20, 2020
User-centered development of a Web-based preschool vision screening tool
David P Taylor1, Bruce E Bray, Nancy Staggers
1University of Utah, Salt Lake City, UT, USA.
Insights
Web-based vision screening for preschoolers is feasible. A user-centered design approach created a usable website, achieving 21 of 22 usability objectives for early amblyopia detection.
Area of Science:
- Ophthalmology
- Pediatric Health
- Human-Computer Interaction
Background:
- Early detection of amblyopia is crucial for successful treatment.
- Current screening methods often miss preschool-aged children.
- Accessible screening tools are needed for early intervention.
Purpose of the Study:
- To explore the feasibility of web-based vision screenings for children aged 3-6.
- To integrate patient education for parents and children into the screening process.
- To develop a highly usable screening website using a user-centered design.
Main Methods:
- Employed a user-centered design methodology with requirements gathering and iterative prototyping.
- Conducted usability testing with parents and children in their home environment.
- Administered a satisfaction questionnaire to evaluate the final product.
Main Results:
- A highly usable web-based vision screening website was successfully created.
- Twenty-one out of 22 predefined usability objectives were met.
- The study demonstrated the feasibility of web-based vision screening for young children.
Conclusions:
- Web-based vision screening is a viable method for reaching preschool-aged children.
- User-centered design and in-home testing are critical for developing effective health tools.
- This approach can improve early detection rates for amblyopia.
Abstract:
Although amblyopia is most successfully treated when detected in early childhood, many preschool-aged children are not being screened. This project explored the delivery of Web-based vision screenings, integrated with patient education, to parents and children, aged 3 to 6 years. Through a user-centered design methodology involving requirements gathering, iterative prototype development, and usability testing, a highly usable screening Website was created. Interviewing and testing parents and children in the home were essential in gathering accurate data about environments where the tool would actually be used. Frequent iterations of designing, testing, and modifying the tool were useful in identifying and correcting usability problems. Usability goals were set early in the project, and in the final phase a satisfaction questionnaire was administered to participants. Twenty-one out of 22 final usability objectives were achieved and the feasibility of Web-based vision screening was demonstrated.
