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Measurement of distance objective visual acuity with the computerized optokinetic nystagmus test in patients with ocular diseases

  • Neuro-ophthalmology
  • Published:
Graefe's Archive for Clinical and Experimental Ophthalmology Aims and scope Submit manuscript

Abstract

Backgrounds

To evaluate the efficacy of a computerized optokinetic nystagmus (OKN) test for determination of objective visual acuity (VA) at distance in patients with various ocular diseases.

Methods

This is a prospective, non-interventional study that included 85 eyes of 71 patients with one or more ocular pathologies. Study patients were classified into group C (39 eyes of 30 patients with central visual damage), group P (24 eyes of 20 patients with peripheral visual defect) and group M (22 eyes of 21 patients with media opacity). Objective distance VA was measured with OKN induction and suppression methods, and the correlation between the objective and subjective VA at distance was evaluated using linear regression analysis. Mean subjective VAs were compared among each objective VA step and among the three groups.

Results

Significant correlation was found between subjective distance VA and objective VA determined by both OKN induction and suppression methods in all three groups and in overall patients. In overall patients, the mean subjective VA was significantly different in several objective VA steps (Welch’s ANOVA, p < 0.001 for induction and suppression methods). No significant difference in subjective VA among the three groups was found in any objective VA step.

Conclusions

Our objective VA test using OKN induction and suppression methods can be useful in estimating distance VA in patients with various ocular diseases.

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Acknowledgements

All authors had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. This work was supported by Grant A080299 from the Korea Health 21 R&D Project, Ministry of Health, Welfare, and Family Affairs, Republic of Korea.

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Conflict of Interest

None.

Author information

Authors and Affiliations

  1. Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumiro, Bundang-gu, Seongnam, Gyeonggi-do, 463–707, Korea

    Sang Beom Han, Eun Ryung Han, Joon Young Hyon, Jin Hak Lee & Jeong-Min Hwang

  2. Myungdong St. Mary’s Eye Center, Seoul, Korea

    Eun Ryung Han

  3. School of Electrical Engineering, Seoul National University, Seoul, Korea

    Jong-Mo Seo

Authors
  1. Sang Beom Han
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  2. Eun Ryung Han
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  3. Joon Young Hyon
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  4. Jong-Mo Seo
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  5. Jin Hak Lee
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  6. Jeong-Min Hwang
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Corresponding author

Correspondence to Jeong-Min Hwang.

Additional information

Sang Beom Han and Eun Ryung Han equally contributed in this work.

This study was supported by a grant from the Korea Health 21 R&D Project, Korea Health Industry Development Institute, Republic of Korea (A080299).

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Han, S.B., Han, E.R., Hyon, J.Y. et al. Measurement of distance objective visual acuity with the computerized optokinetic nystagmus test in patients with ocular diseases. Graefes Arch Clin Exp Ophthalmol 249, 1379–1385 (2011). https://doi.org/10.1007/s00417-011-1705-x

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  • DOI: https://doi.org/10.1007/s00417-011-1705-x

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