J Korean Ophthalmol Soc.  2013 Jun;54(6):932-937. 10.3341/jkos.2013.54.6.932.

Perception of 3-Dimensional (3D) Image after Successful Exotropia Surgery

• Kim J
• Lee SK
• Lee HK
• Lee JB
• Han SH

• KMID: 2217270
• DOI: http://doi.org/10.3341/jkos.2013.54.6.932

Abstract

PURPOSE
To investigate the perception of 3-dimensional (3D) image after successful exotropia surgery and compare with Titmus stereo test.
METHODS
A total of 23 children who underwent surgery for intermittent exotropia and 28 normal children were evaluated with a 3D laptop computer and Titmus stereo test.
RESULTS
The mean minimal 3D scene depth level was 38.26 +/- 19.69 in the exotropia group and 33.21 +/- 16.11 in the normal group with no significant difference (p = 0.319). The mean stereoacuity was 60.97 +/- 34.23 arc sec in the exotropia group and 76.69 +/- 93.81 arc sec in the normal group with no significant difference (p = 0.444). The mean minimal 3D scene depth and mean stereoacuity showed statistically significant positive correlation in both the exotropia group (p = 0.024) and normal group (p = 0.026).
CONCLUSIONS
After a successful exotropia surgery, patients can normally perceive 3D images. Better 3D image perception can be predicted if a previously established stereo test shows good results.

Keyword

3D image; Exotropia; Stereopsis

MeSH Terms

Child
Depth Perception
Exotropia
Humans

Figure

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  Figure 1. (A) The patient watches the 3D image displayed by 3D laptop computer. (B) Animation is converted into 3D image by TriDef 3D media player.

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  Figure 2. Comparison between exotropia group and normal group. (A) The mean minimal 3D scene depth level didn’t show sig-nificant difference (p = 0.319, independent samples t-test). (B) The mean stereoacuity by Titmus stereo test didn’t show significant difference (p = 0.444, independent samples t-test).

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  Figure 3. Correlation between mean minimal 3D scene depth level and mean stereoacuity by Titmus test (A) in exotropia group (Pearson correlation coefficient 0.468, p = 0.024), (B) in normal group (Pearson correlation coefficient 0.421, p = 0.026).

Reference

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