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The visual communication in the optonometric scales.
Rosane Arruda Dantas1, Lorita Marlena Freitag Pagliuca
1Ceará Federal University. rosane_dantas@yahoo.com
Revista Latino-Americana De Enfermagem
|February 13, 2007
Summary
Visual acuity testing in children uses image-based optotypes. Adapting these images to a child
Area of Science:
- Ophthalmology and Optometry
- Developmental Psychology
Background:
- Effective communication relies on visual acuity, necessitating regular eye examinations.
- Optotypes, or image-based symbols, are crucial for assessing visual acuity in young children.
- The selection and design of optotypes significantly impact the accuracy of visual acuity assessments.
Purpose of the Study:
- To analyze the principles guiding the construction of visual acuity testing scales.
- To evaluate the suitability of pictorial optotypes in early childhood vision screening.
- To explore the role of symbolic representation and prior knowledge in optotype recognition.
Main Methods:
- Bibliographic and analytical review of existing literature on visual acuity testing.
- Examination of the principles behind optotype design and image selection.
- Consideration of the symbolic nature of images as non-verbal expressions.
Main Results:
- The effectiveness of optotypes depends on the child's familiarity with the presented images.
- Drawings used as optotypes represent symbolic expressions influenced by individual experiences.
- Indiscriminate use of images without considering prior knowledge can lead to inaccurate results.
Conclusions:
- Visual acuity scales are valid when optotypes are adapted to the child's experiential universe.
- Careful consideration of image familiarity and symbolic meaning is essential for accurate vision screening.
- Future research should focus on developing culturally relevant and experientially appropriate optotypes.
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