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[Peculiarities of stereovision in children]
Ona Majauskiene1, Indre Majauskaite
1Eye Clinic, Kaunas University of Medicine Hospital, Eiveniu 2, 50010 Kaunas, Lithuania. okuliaras@omni.lt
Insights
Stereovision and stereoacuity improve with age in preschool children. Contoured stereotests were easier for younger children to understand, showing age-related differences in visual perception.
Area of Science:
- Ophthalmology
- Pediatric Vision
- Visual Neuroscience
Background:
- Stereovision is crucial for depth perception and spatial awareness.
- Assessing stereovision in preschool children is important for early detection of visual impairments.
Purpose of the Study:
- To evaluate stereovision and stereoacuity in preschool children.
- To compare the effectiveness of different stereotests in this age group.
Main Methods:
- 118 preschool children were divided into three age groups: 2-3, 4-5, and 6-7 years.
- Titmus, Lang I, and contour anaglyphic pictures stereotests were utilized.
- Stereovision and stereoacuity were assessed for each child.
Main Results:
- Stereovision was present in 94.92% of children, with higher prevalence in older groups (97.56% in 6-7 year olds).
- Stereoacuity of 40 arcseconds was achieved by 63.41% of 6-7 year olds, compared to only 7.69% of 2-3 year olds.
- No significant differences were found between stereotest types, though contoured tests were more comprehensible for 2-5 year olds.
Conclusions:
- Stereovision and stereoacuity significantly increase with age in preschool children.
- Contoured stereotests appear more suitable for younger children (2-5 years) due to better comprehension.
- Early assessment of stereoscopic vision is vital for identifying developmental trends and potential issues.
Objective:
The aim of this work was to evaluate the stereovision and the stereoacuity of the preschool children and to compare various stereotests.
Material And Methods:
The test group consisted of 118 children who were divided into 3 age groups: 2-3 year-old group (22.03%), 4-5 year-old group (43.22%) and 6-7 year-old group (34.75%). Titmus, Lang I and contour anaglyphic pictures stereotests were used.
Results:
The stereovision was investigated in 94.92% of children (88.46% in 2-3 year old group, 96.08% in 4-5 years and 97.56% in 6-7 year-old group). The stereoacuity of 40" was detected in 63.41% of 6-7 year-old and only in 7.69% of 2-3 year-old children.
Conclusions:
A reverse correlation was noticed between the stereoacuity and the frequency of positive results in all age groups. The frequency of positive stereovision in various disparity levels and the stereoacuity increase together with the age of children; these data were significant between the groups of 2-3 years and 6-7 years (p<0.05). Data did not show significant differences between various stereotests, but we noticed that contoured stereotests were more comprehensible to the 2-5 year-old children.
