The Hess Screen Test

Roper-Hall, Gill

doi:10.3368/aoj.56.1.166

Cited by 32 publications

(20 citation statements)

References 11 publications

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“…Many are used in individual labs or clinics and only a few are available commercially at this time. 3 …”

Section: Plotting Methodsmentioning

confidence: 97%

Overview and Comparison of Screen Test Methods Used in Quantifying Ocular Motility Disorders

Roper-Hall

2006

American Orthoptic Journal

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In much the same way as a formal visual field test using a perimeter can document and quantify a visual field defect, so can plotting the limited range of motion of extraocular muscles on a screen at a fixed distance provide a graphic pattern for interpretation and a quantified baseline for subsequent comparison. Classic patterns may be recognized in both examples, such as a homonymous hemianopia in a visual field defect or an incomitant esotropia from abducens palsy in a motility defect. Both techniques permit the examiner to interpret the results in a graphic rather than strictly numerical fashion and aid in differential diagnosis. More accurate sequential follow-up is provided to document progression, recovery, or stability of the condition and assist in its medical or surgical management.

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“…Many are used in individual labs or clinics and only a few are available commercially at this time. 3 …”

Section: Plotting Methodsmentioning

confidence: 97%

Overview and Comparison of Screen Test Methods Used in Quantifying Ocular Motility Disorders

Roper-Hall

2006

American Orthoptic Journal

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“…For patients with severe cases of diplopia, we set the distance to 30 cm, as the diplopic image could be out of range from the size of monitor. A distance below 30 cm was not applied and those patients were excluded from the study to avoid the effects of accommodation or vergence [6]. We adjusted the distance to 50 cm for the patients with very mild diplopia because the distance between white dot and red dot was too close to measure.…”

Section: Methodsmentioning

confidence: 99%

A computerized red glass test for quantifying diplopia

et al. 2017

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BackgroundAccurate evaluation of diplopia during bedside physical examination is challenging. We developed a new computerized red glass test (CRT) to detect, localize, and quantify diplopia and investigated whether the CRT is useful and feasible.MethodsDuring the CRT, a white dot randomly appears on a monitor. Because a red glass is applied on the right eye, a patient can see one white dot and one red dot when diplopia is present. We defined the degree of diplopia as the direct distance of the two points with the largest deviation and compared the degree with the Hess score and Hess area ratio.ResultsWe prospectively enrolled 14 patients with binocular diplopia. Test–retest reliability of the CRT was excellent (overall intraclass correlation coefficient = 0.948, 95% CI 0.939–0.956). The degree of diplopia in the CRT was well correlated with both the Hess score (r = 0.719, p = 0.005) and the Hess area ratio (r = −0.620, p = 0.018).ConclusionsThe CRT can easily detect the presence of diplopia and provided the quantitative values of the degree of diplopia. The CRT was useful and feasible for improving routine bedside examination.

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“…There are fi ve excellent articles comparing the screen tests in the 2006 AOJ. [4][5][6][7][8] In all cases of a vertical imbalance, torsion should be tested even if the patient does not complain of tilting images. When torsion is present, it should be checked in several positions of gaze with the double fusion may be reduced due to traumatic motor fusion defi ciency or a bilateral superior oblique palsy.…”

Section: What Surgery Should Be Done?mentioning

confidence: 99%

The Value of Preoperative and Postoperative Diplopia Testing

Jenkins¹

2008

American Orthoptic Journal

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Preoperative diplopia testing in adults is extremely important in the determination of the type of strabismus and what medical or surgical management should be done. It helps in deciding if the patient should have surgery, what surgery should be done, and when to do it. The evaluation of postoperative diplopia also helps in determining the course of action-e.g., whether to wait and reassure, manage medically with prisms, or reoperate. Orthoptists, as part of the strabismus ophthalmology team, are uniquely skilled in all aspects of the diplopia exam and can help the surgeon make management decisions.

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The Hess Screen Test

Cited by 32 publications

References 11 publications

Overview and Comparison of Screen Test Methods Used in Quantifying Ocular Motility Disorders

Overview and Comparison of Screen Test Methods Used in Quantifying Ocular Motility Disorders

A computerized red glass test for quantifying diplopia

The Value of Preoperative and Postoperative Diplopia Testing

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