A Comparison of the Frisby, Random-Dot E, TNO, and Randot Circles Stereotests in Screening and Office Use

Simons, Kurt

doi:10.1001/archopht.1981.03930010448011

Cited by 129 publications

(81 citation statements)

References 16 publications

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“…15,16,[54][55][56][57][58][59] Fu et al 55 suggest that the better performance on contour stereograms may be because these 'provide cues to fusion that allow some patients with strabismus to better control their deviations than random dot targets'. This motor explanation may well contribute, 58 but sensory mechanisms probably contribute as well.…”

Section: Contour Vs Cyclopean Stereogramsmentioning

confidence: 42%

Stereo vision and strabismus

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2014

Eye

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Binocular stereopsis, or stereo vision, is the ability to derive information about how far away objects are, based solely on the relative positions of the object in the two eyes. It depends on both sensory and motor abilities. In this review, I briefly outline some of the neuronal mechanisms supporting stereo vision, and discuss how these are disrupted in strabismus. I explain, in some detail, current methods of assessing stereo vision and their pros and cons. Finally, I review the evidence supporting the clinical importance of such measurements.

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Section: Contour Vs Cyclopean Stereogramsmentioning

confidence: 42%

Stereo vision and strabismus

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2014

Eye

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“…However, the success rate with children is decreased due to some limitations. [6][7][8][9][10][11][12][13][14][15][16][17] There are many difficulties in its clinical usage because most of the test implements are composed of animals, figures and objects which Korean children have difficulty in identifying with. To overcome these weak points, we designed a digitalized, random-dot stereogram.…”

Section: Introductionmentioning

confidence: 44%

A Study on the Clinical Usefullness of Digitalized Random-dot Stereoacuity Test

Yang

Son²,

Yun

2004

Korean J Ophthalmol

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Stereoacuity is defined as a correlative order of depth of the object in three dimensional space, with a high degree ability to perceive the depth by using the monocular vision of both eyes. [1][2][3][4][5] Generally, the stereoptic function is decreased when there is strabismus, suppression and amblyopia. The stereoacuity test has been regarded as important because it can confirm the absence of strabismus, suppression and amblyopia, except for intermittent exotropia and anisometropic amblyopia, if the stereoptic function is normal. The stereoacuity test is an important test which is used as an indicator to decide on the operation time and postoperative evaluation.Stereoacuity tests include the Randot test, Titmus-fly, TNO and other related tests. We can test the stereoacuity after separating the binocular vision by using polarized or red-green glasses. However, in an actual clinic it is difficult for a clinical doctor to perform an accurate test in the case of children who hate to wear glasses and have precognition of the test itself. 6-9 A good stereoacuity test should be easy, simple and accurate without rejection. Nevertheless, most of the stereoacuity tests are Existing methods of stereoacuity testing need specific glasses or optical device for use. We have designed a new stereoacuity test for the digitalized, random-dot stereogram and researched its clinical usefulness. A digitalized, random-dot, stereoacuity test card was created with a computer program that used a preferred symbol and the designed system was tested along with the Randot preschool stereoacuity, Titmus-fly and Lang tests to compare their sensitivity and specificity. The mean success rate of the digitalized, random-dot test was 98.2%, while the rates of the Randot preschool stereoacuity, Titmus-fly and Lang tests were 89.3%, 74.2% and 86.1%, respectively. Sensitivity and specificity of the new test were 100% and 95.3%, respectively, which were not that different from those of the Randot preschool stereoacuity, Titmus-fly and Lang tests. We found that the digitalized, random-dot, stereoacuity test has a high success rate and can be appropriately used in medical examinations and follow-up tests for strabismus patients.

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“…[8][9][10][11] The study also derived thatTitmus test is reliable to quantify the fine stereopsis and easy to apply to healthy subjects of 4-14 years of age.…”

Section: Discussion:-supporting

confidence: 40%

“…Randot due to its various modifications sometimes gives false positives. [1][2][3][4] In view of the above it was decided to screen the healthy airline pilots coming for routine medical exam with both TNO and Randot stereoacuity tests and compare the stereoacuity levels and assess the efficiency and practicality.…”

Section: …………………………………………………………………………………………………… Introduction:-mentioning

confidence: 47%

To Compare Tno Versus Randot Test for Measuring Stereoacuity While Screening Airline Pilots.

Raina¹,

Afcme²,

Singh³

2018

IJAR

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Background: Stereoacuity or depth perception is an important visual parameter which is often not tested during ophthalmic examinations but assumes enormous importance when dealing with critical occupations like flying. The importance of stereoacuity testing in pilots is recently been acknowledged however no official norms exist for universal testing of stereoacuity levels in pilots. We proposed to evaluate TNO with Randot stereacuity test in all airline pilots during their routine medical examination. Methods: A total of 515 airline pilots( 431 males and 84 females) with no previous ocular medical or surgical history were prospectively assessed using TNO and Random dot stereoacuity tests. Result: TNO and RDT correlated positively and significantly at .01 level. There was no statistically significant difference found between males and females. Conclusion: Both TNO and Randot stereoacuity compared favourably in testing stereoacuity testing and can be used universally however TNO test did show an added advantage of rechecking the colour perception of airline pilots as those with colour blindness cannot discriminate TNO test.

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A Comparison of the Frisby, Random-Dot E, TNO, and Randot Circles Stereotests in Screening and Office Use

Cited by 129 publications

References 16 publications

Stereo vision and strabismus

Stereo vision and strabismus

A Study on the Clinical Usefullness of Digitalized Random-dot Stereoacuity Test

To Compare Tno Versus Randot Test for Measuring Stereoacuity While Screening Airline Pilots.

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