Clinically Normal Stereopsis Does Not Ensure Performance Benefit from Stereoscopic 3D Depth Cues

McIntire, John P.; Havig, Paul R.; Harrington, Lawrence K.; Wright, Steve; Watamaniuk, Scott; Heft, Eric L.

doi:10.21236/ada614608

Cited by 5 publications

(9 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ensure good lighting but avoid glaring surface reflection. 5,15 The ability to recognize the position of the fly's wings on a plane of cards suggests crude stereopsis (3000 arcseconds). A better stereoacuity level can be shown by using stereoscopic images with a smaller horizontal disparity; in each examination, the patient must identify one image provided stereoscopically from a group of similar images.…”

Section: Quantitative Techniques For Stereoscopic Examination Contour Stereopsis Test and Clinical Random Dot Stereopsis Testmentioning

confidence: 99%

A Comprehensive Approach Into Stereoscopic Vision

Wulandari¹

2022

MNJ

View full text Add to dashboard Cite

Stereopsis (or stereoscopic) vision is the ability to see depth of perception, which is created by the difference in angle of view between both eyes. The first process is known as simultaneous perception. Objects will fall on each corresponding retina and there will be a process of fusion of the two images into one. Then, the brain initiates three-dimensional perception in visual cortex, creating stereoscopic vision. Stereoscopic vision will rapidly develop, especially at the age of 6-8 months of life. Stereoscopic is important in daily activities. There are many stereoacuity tests to evaluate stereoscopic vision. Stereoscopic examinations are based on the principle of haploscope, anaglyph, or polaroid vectograph. There are qualitative and quantitative examination methods to assess stereoscopic vision. Qualitative examinations such as Horizontal Lang Two Pencil test and Synoptophore. Quantitative examination including Contour stereopsis test and Clinical random dot stereopsis test. The inability of the eye to see stereoscopic can be called stereoblindness. This can be affected by amblyopia, decreased visual acuity, or the presence of ocular misalignment. Inability to achieve stereoscopic vision will impact an individual to perform some daily life activities, and lead to an increase in difficulty interacting in the world.

show abstract

Section: Quantitative Techniques For Stereoscopic Examination Contour Stereopsis Test and Clinical Random Dot Stereopsis Testmentioning

confidence: 99%

A Comprehensive Approach Into Stereoscopic Vision

Wulandari¹

2022

MNJ

View full text Add to dashboard Cite

show abstract

“…Individual differences in the availability of binocular disparity on viewing 3D graphics in various visual environments provide important information if the aim of society is to render 3D television accessible and popular for all age groups. Previous studies found that 17–30% of young and young‐middle people are pseudo‐stereoblind observers, meaning that they do not use disparity information when the depth of 3D graphic stimuli, which is presented for more than a few seconds, were evaluated by subjective judgments or a performance‐based task . This is the case even though these viewers can actually discriminate small levels of disparity in a Titmus stereoscopic test.…”

Section: Discussionmentioning

confidence: 97%

“…Therefore, it is reasonable to suppose that a small percentage of people with physically normal eyes is unable to use disparity information to perceive the depth of 3D stimuli that last as long as a second (i.e., they have a type of stereoblindness). However, slightly more than 30% of people perceive virtually no depth when the duration of disparity information is 200 ms or less; these individuals are termed stereoanomalous observers …”

Section: Introductionmentioning

confidence: 99%

“…We termed these people pseudo‐stereoblind observers. Another study using an objective manual depth alignment task also reported that about 17% of observers, ranging in age from 19 to 35 years old, demonstrated abnormal depth perception, although all observers showed normal stereovision and binocular function on screening tests . Therefore, it is likely that about 17–30% of young and young–middle people can be regarded as pseudo‐stereoblindness regardless of the type of depth evaluation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Aging and availability of binocular disparity and pictorial depth cues in 3D graphics contents

et al. 2014

View full text Add to dashboard Cite

Some stereoblind observers do not perceive depth of 3D stimuli that depends on binocular disparity. These individuals, who have no disabilities, comprise over 5% of the general population. In addition, 17–30% of nonstereoblind young and young–middle people do not use disparity information in certain 3D environments, a phenomenon known as pseudo‐stereoblindness. This study aimed to investigate the relationship between aging and the proportion of pseudo‐stereoblindness in the general population. In an experiment, 134 nonstereoblind participants, ranging in age from 17 to 83 years, judged subjective depth of 3D stimuli containing binocular disparity and pictorial depth cues. Results showed that the proportion of pseudo‐stereoblindness among young (17–24 years old) and young–middle aged observers (25–39 years old) was 29%, in both cases. However, the proportion of pseudo‐stereoblind observers increased in older populations: 65% and 82% in the middle (40–54 years old) and senior (55–83 years old) age groups, respectively. These results suggest that a number of people, especially in elderly populations, have trouble perceiving depth from binocular disparity in 3D graphic contents despite their essential ability to use disparity information.

show abstract

“…Concerning contemporary research, McIntire et al. (2014) investigated the effect of varying disparity on task performance for a virtual object precision placement task while viewing a stereoscopic display.…”

Section: Discussionmentioning

confidence: 99%

50 Years of Stereoblindness: Reconciliation of a Continuum of Disparity Detectors With Blindness for Disparity in Near or Far Depth

Dorman

2017

i-Perception

View full text Add to dashboard Cite

Whitman Richards (1932–2016) discovered some 50 years ago that about 30% of observers from the normal population exhibit stereoblindness: the disability to process binocular disparities in either far or near depth. We review the literature on stereoblindness entailing two insights. First, contemporary scholars in stereopsis undervalue the comprehension that disparity processing studies require precise assessments of observers’ stereoblindness. We argue that this frequently leads to suboptimal interpretations. Second, there is still an open conundrum: How can the established finding that disparity is processed by a continuum of detectors be reconciled with the disability of many observers to process a whole class of far or near disparities? We propose, based upon integration of literature, that an asymmetry between far and near disparity detection at birth—being present for a variety of reasons—can suppress the typical formation of binocular correlation during the critical period for the development of stereopsis early in life, thereby disabling a whole class of far or near disparities.

show abstract

Clinically Normal Stereopsis Does Not Ensure Performance Benefit from Stereoscopic 3D Depth Cues

Abstract: This report is published in the interest of scientific and technical information exchange, and its publication does not constitute the Government's approval or disapproval of its ideas or findings.

Cited by 5 publications

References 22 publications

A Comprehensive Approach Into Stereoscopic Vision

A Comprehensive Approach Into Stereoscopic Vision

Aging and availability of binocular disparity and pictorial depth cues in 3D graphics contents

50 Years of Stereoblindness: Reconciliation of a Continuum of Disparity Detectors With Blindness for Disparity in Near or Far Depth

Contact Info

Product

Resources

About