Korean J Ophthalmol.  2015 Apr;29(2):126-130. 10.3341/kjo.2015.29.2.126.

Normative Data of Videonystagmography in Young Healthy Adults under 40 Years Old

• Kang S
• Kim US

• KMID: 2363719
• DOI: http://doi.org/10.3341/kjo.2015.29.2.126

Abstract

PURPOSE
The purpose of this study was to establish a set of normative data values for saccade movements using videonystagmography and to evaluate the effects of manual correction on this data.
METHODS
We examined 25 healthy subjects (9 men and 16 women). All tests were carried out by one well-instructed physician. Errors such as the wrong detection of the inflection point, missing movement, and prediction occurred during some tests. Thus, the same physician manually corrected the data by deleting error data from row results.
RESULTS
We established a set of normative data for horizontal saccade movements (amplitude size 15 and 30 degrees) for mean peak velocity, latency, and accuracy. Manual correction only impacted latency and accuracy at 30 degrees horizontal, which is likely related to possible errors during the test.
CONCLUSIONS
The present study provides clinically useful videonystagmography-based normative data for clinicians regarding saccade movements in Korean individuals.

Keyword

Accuracy; Latency; Saccades; Velocity

MeSH Terms

Adult
Female
Healthy Volunteers
Humans
Male
Oculomotor Muscles/*physiology
Photic Stimulation
Reference Values
Reproducibility of Results
Saccades/*physiology
Video Recording/*methods
Young Adult

Figure

• 

  Fig. 1 Possible errors during the test. (A) Wrong detection of inflection point, (B) missing movement, and (C) prediction.

Reference

1. Bonnet C, Hanuska J, Rusz J, et al. Horizontal and vertical eye movement metrics: what is important? Clin Neurophysiol. 2013; 124:2216–2229.

2. Casse G, Sauvage JP, Adenis JP, Robert PY. Videonystagmography to assess blinking. Graefes Arch Clin Exp Ophthalmol. 2007; 245:1789–1796.

3. McCaslin DL, Jacobson GP. Current role of the videonystagmography examination in the context of the multidimensional balance function test battery. Semin Hear. 2009; 30:242–252.

4. Naguib MB, Madian Y, Refaat M, et al. Characterisation and objective monitoring of balance disorders following head trauma, using videonystagmography. J Laryngol Otol. 2012; 126:26–33.

5. Robinson DA. The mechanics of human saccadic eye movement. J Physiol. 1964; 174:245–264.

6. Cook G, Stark L. The human eye-movement mechanism: experiments, modeling, and model testing. Arch Ophthalmol. 1968; 79:428–436.

7. Westheimer G. Mechanism of saccadic eye movements. AMA Arch Ophthalmol. 1954; 52:710–724.

8. Boghen D, Troost BT, Daroff RB, et al. Velocity characteristics of normal human saccades. Invest Ophthalmol. 1974; 13:619–623.

9. Baloh RW, Konrad HR, Sills AW, Honrubia V. The saccade velocity test. Neurology. 1975; 25:1071–1076.

10. Mims JL 3rd, Treff G. Saccadic velocities of horizontal rectus muscles in twenty-five normal humans. J Pediatr Ophthalmol Strabismus. 1982; 19:129–136.

11. Raab EL. Normal saccadic velocities. J Pediatr Ophthalmol Strabismus. 1985; 22:20–22.

12. Abel LA, Troost BT, Dell'Osso LF. The effects of age on normal saccadic characteristics and their variability. Vision Res. 1983; 23:33–37.

13. Spooner JW, Sakala SM, Baloh RW. Effect of aging on eye tracking. Arch Neurol. 1980; 37:575–576.

14. Warabi T, Kase M, Kato T. Effect of aging on the accuracy of visually guided saccadic eye movement. Ann Neurol. 1984; 16:449–454.

15. Wilson SJ, Glue P, Ball D, Nutt DJ. Saccadic eye movement parameters in normal subjects. Electroencephalogr Clin Neurophysiol. 1993; 86:69–74.