Repeated mobility testing for later artificial visual function evaluation

M. Velikay-Parel, D. Ivastinovic, M. Koch, R. Hornig, Gislin Dagnelie, G. Richard, A. Langmann

Research output: Contribution to journalArticle

Abstract

The study investigates the utility of a newly designed mobility test for repeated testing of visual function in patients with severe visual impairment and future application in evaluating functional progress in patients with artificial vision. Ten subjects divided into three groups based on visual acuity (VA) ranging from light perception to 20/200 and reduced visual field (VF) were included in the study. The mobility test consisted of using a set of four different but structurally similar and relatively short mazes having a constant number of obstacles of various sizes. The subjects, divided into three groups by acuity, passed through each course several times. In general, the patients with better VA had a larger extent of VF. Average speed and number of contacts were recorded as measures of performance. The average passing times of the groups through the courses were significantly different (p = 0.03), which was influenced by VA and VF. There was no significant difference in average number of contacts between the groups (p = 0.15). The mobility test proved to be appropriate for gaining statistically relevant results in repeated individual testing of patients with severe vision impairment. Results show promise for use this mobility test as a tool for assessing visual function of patients undergoing implantation of a visual prosthesis for artificial vision.

Original languageEnglish (US)
Article numberS12
JournalJournal of Neural Engineering
Volume4
Issue number1
DOIs
StatePublished - Mar 1 2007

Fingerprint

Function evaluation
Computer vision
Visual Fields
Visual Acuity
Testing
Visual Prosthesis
Vision Disorders
Light
Prostheses and Implants

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Neuroscience (miscellaneous)

Cite this

Velikay-Parel, M., Ivastinovic, D., Koch, M., Hornig, R., Dagnelie, G., Richard, G., & Langmann, A. (2007). Repeated mobility testing for later artificial visual function evaluation. Journal of Neural Engineering, 4(1), [S12]. https://doi.org/10.1088/1741-2560/4/1/S12

Repeated mobility testing for later artificial visual function evaluation. / Velikay-Parel, M.; Ivastinovic, D.; Koch, M.; Hornig, R.; Dagnelie, Gislin; Richard, G.; Langmann, A.

In: Journal of Neural Engineering, Vol. 4, No. 1, S12, 01.03.2007.

Research output: Contribution to journalArticle

Velikay-Parel, M, Ivastinovic, D, Koch, M, Hornig, R, Dagnelie, G, Richard, G & Langmann, A 2007, 'Repeated mobility testing for later artificial visual function evaluation', Journal of Neural Engineering, vol. 4, no. 1, S12. https://doi.org/10.1088/1741-2560/4/1/S12
Velikay-Parel, M. ; Ivastinovic, D. ; Koch, M. ; Hornig, R. ; Dagnelie, Gislin ; Richard, G. ; Langmann, A. / Repeated mobility testing for later artificial visual function evaluation. In: Journal of Neural Engineering. 2007 ; Vol. 4, No. 1.
@article{112f5f04d3af4895b097b6d8b874d3e6,
title = "Repeated mobility testing for later artificial visual function evaluation",
abstract = "The study investigates the utility of a newly designed mobility test for repeated testing of visual function in patients with severe visual impairment and future application in evaluating functional progress in patients with artificial vision. Ten subjects divided into three groups based on visual acuity (VA) ranging from light perception to 20/200 and reduced visual field (VF) were included in the study. The mobility test consisted of using a set of four different but structurally similar and relatively short mazes having a constant number of obstacles of various sizes. The subjects, divided into three groups by acuity, passed through each course several times. In general, the patients with better VA had a larger extent of VF. Average speed and number of contacts were recorded as measures of performance. The average passing times of the groups through the courses were significantly different (p = 0.03), which was influenced by VA and VF. There was no significant difference in average number of contacts between the groups (p = 0.15). The mobility test proved to be appropriate for gaining statistically relevant results in repeated individual testing of patients with severe vision impairment. Results show promise for use this mobility test as a tool for assessing visual function of patients undergoing implantation of a visual prosthesis for artificial vision.",
author = "M. Velikay-Parel and D. Ivastinovic and M. Koch and R. Hornig and Gislin Dagnelie and G. Richard and A. Langmann",
year = "2007",
month = "3",
day = "1",
doi = "10.1088/1741-2560/4/1/S12",
language = "English (US)",
volume = "4",
journal = "Journal of Neural Engineering",
issn = "1741-2560",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Repeated mobility testing for later artificial visual function evaluation

AU - Velikay-Parel, M.

AU - Ivastinovic, D.

AU - Koch, M.

AU - Hornig, R.

AU - Dagnelie, Gislin

AU - Richard, G.

AU - Langmann, A.

PY - 2007/3/1

Y1 - 2007/3/1

N2 - The study investigates the utility of a newly designed mobility test for repeated testing of visual function in patients with severe visual impairment and future application in evaluating functional progress in patients with artificial vision. Ten subjects divided into three groups based on visual acuity (VA) ranging from light perception to 20/200 and reduced visual field (VF) were included in the study. The mobility test consisted of using a set of four different but structurally similar and relatively short mazes having a constant number of obstacles of various sizes. The subjects, divided into three groups by acuity, passed through each course several times. In general, the patients with better VA had a larger extent of VF. Average speed and number of contacts were recorded as measures of performance. The average passing times of the groups through the courses were significantly different (p = 0.03), which was influenced by VA and VF. There was no significant difference in average number of contacts between the groups (p = 0.15). The mobility test proved to be appropriate for gaining statistically relevant results in repeated individual testing of patients with severe vision impairment. Results show promise for use this mobility test as a tool for assessing visual function of patients undergoing implantation of a visual prosthesis for artificial vision.

AB - The study investigates the utility of a newly designed mobility test for repeated testing of visual function in patients with severe visual impairment and future application in evaluating functional progress in patients with artificial vision. Ten subjects divided into three groups based on visual acuity (VA) ranging from light perception to 20/200 and reduced visual field (VF) were included in the study. The mobility test consisted of using a set of four different but structurally similar and relatively short mazes having a constant number of obstacles of various sizes. The subjects, divided into three groups by acuity, passed through each course several times. In general, the patients with better VA had a larger extent of VF. Average speed and number of contacts were recorded as measures of performance. The average passing times of the groups through the courses were significantly different (p = 0.03), which was influenced by VA and VF. There was no significant difference in average number of contacts between the groups (p = 0.15). The mobility test proved to be appropriate for gaining statistically relevant results in repeated individual testing of patients with severe vision impairment. Results show promise for use this mobility test as a tool for assessing visual function of patients undergoing implantation of a visual prosthesis for artificial vision.

UR - http://www.scopus.com/inward/record.url?scp=33847651873&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847651873&partnerID=8YFLogxK

U2 - 10.1088/1741-2560/4/1/S12

DO - 10.1088/1741-2560/4/1/S12

M3 - Article

C2 - 17325408

AN - SCOPUS:33847651873

VL - 4

JO - Journal of Neural Engineering

JF - Journal of Neural Engineering

SN - 1741-2560

IS - 1

M1 - S12

ER -