Screening for Stereopsis of Children Using an Autostereoscopic Smartphone

Yang, Yanhui; Wu, Huang

doi:10.1155/2019/1570309

Cited by 3 publications

(3 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact, the application runs in the large part of recent smartphones with high-resolution display and requires simple anaglyphic glasses. Other techniques, like autostereoscopic method of presentation, require special devices [ 12 , 13 ].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of stereoacuity with a digital mobile application

Bonfanti

Gargantini

Esposito³

et al. 2021

Graefes Arch Clin Exp Ophthalmol

View full text Add to dashboard Cite

Purpose Stereopsis is a fundamental skill in human vision and visual actions. There are many ways to test and quantify stereoacuity: traditional paper and new digital applications are both valid ways to test the stereoacuity. The aim of this study is to compare the results obtained using standard tests and the new Stereoacuity Test App developed by the University of Bergamo. Methods A group of 497 children (272 males), aged between 6 and 11 years old, were tested using different tests for the quantification of stereopsis at near. These tests were TNO, Weiss EKW, and the new developed Stereoacuity Test App. Results A one-way repeated measure ANOVA showed that the three tests give different thresholds of stereoacuity (p < 0.0001). Post hoc analyses with Bonferroni correction showed that all tests showed different thresholds (p < 0.0001). The lower threshold was obtained by Titmus Stereo Test followed by Stereoacuity App, Weiss MKW, and TNO. Conclusion The stereoacuity based on global stereopsis showed that the better values were obtained in order by Stereoacuity Test App, TNO, and Weiss EKW. However, the clinical significance of their values is similar. The new digital test showed a greater compliance by the child, showing itself in tune with the digital characteristics of today’s children.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Another solution is to use a special autostereoscopic smartphone or tablet in which the stereoscopic effect was obtained without the need of glasses but using the autostereoscopic (parallax) technology [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of stereoacuity with a digital mobile application

Bonfanti

Gargantini

Esposito³

et al. 2021

Graefes Arch Clin Exp Ophthalmol

View full text Add to dashboard Cite

show abstract

“…Bonfanti et al presented a “stereo acuity test using a smartphone inserted into a Google Cardboard” [ 25 ]. We have conducted research on stereopsis using two 4 K smartphones [ 26 – 29 ] and autostereoscopic smartphones [ 30 , 31 ]. The disparity in computer expression can be precisely determined by the pixel arrangement characteristics of the monitor, but the luminance and contrast of different displays cannot be easily controlled.…”

Section: Introductionmentioning

confidence: 99%

Effect of Luminance and Contrast Variation on Stereoacuity Measurements Using Smartphone Technology

Liu

2021

Journal of Ophthalmology

Self Cite

View full text Add to dashboard Cite

Owing to the limitations of printed stereoacuity tests, the effects of luminance and contrast on stereopsis have not yet been sufficiently investigated, despite its important implications in designing stereoacuity measuring instruments, particularly for electronic devices. A stereopsis measurement system was established using two 4 K smartphones and a phoropter to evaluate the effects of luminance and contrast variations on the stereoacuity test. Seventeen young subjects with normal visual acuity and stereopsis were recruited. Two types of test symbols, contour-based and random-dot-based, were used in the experiment. Four series tests were established with different maximum brightness values, including 240 lux, 120 lux, 60 lux, and 30 lux. Each series test contained 19 pages with different contrasts between 95% and 5% and was calculated using the Michelson contrast formula. No significant difference was found for both contour-based and random-dot-based stereograms in any of the contrast groups with different maximum brightness. Similarly, no significant difference was found between contour-based and random-dot-based patterns under different contrasts of above 35%. As the contrast decreased below 30%, the stereopsis was significantly better in the contour-based pattern than in the random-dot-based pattern for some degrees of contrast. The luminance and contrast of the digital display are not critical factors for stereoacuity under normal circumstances. This implies that a standard monitor with a certain 3D technology can be used to measure the stereoacuity threshold without calibrating the luminance and contrast.

show abstract

The difference of distance stereoacuity measured with different separating methods

Zhao

Xiao

2020

Ann Transl Med

View full text Add to dashboard Cite

Screening for Stereopsis of Children Using an Autostereoscopic Smartphone

Cited by 3 publications

References 42 publications

Evaluation of stereoacuity with a digital mobile application

Evaluation of stereoacuity with a digital mobile application

Effect of Luminance and Contrast Variation on Stereoacuity Measurements Using Smartphone Technology

The difference of distance stereoacuity measured with different separating methods

Contact Info

Product

Resources

About