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Comparing distance visual acuity measurement with a novel eye chart and the Landolt C chart in a population of children aged 6–18 years

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Abstract

Purpose

The Handy Eye Chart™ is designed to assist in evaluating the visual acuity of patients with non-standard communication styles. The Handy Eye Chart™ has been previously validated against the early treatment diabetic retinopathy study (ETDRS) chart. The aim of this research is to compare visual acuity outcomes with The Handy Eye Chart™ against the international gold standard, the Landolt C chart, in a population of children.

Methods

Sixty participants between the ages of 6 and 18 were recruited at the Pediatric Section of the Department of Ophthalmology at the Emory Eye Center. Visual acuity was evaluated using The Handy Eye Chart™ and the Landolt C Chart, altering the order of administration between charts. The visual acuity data were compared using t test, linear regression, and Bland–Altman analysis.

Results

The mean difference in visual acuity was 0.02 logMAR (CI 0.009–0.04, p = 0.002). The correlation coefficient was 0.98. The Bland–Altman analysis shows the 95% limits of agreement between the charts to be −0.14 to 0.09 logMAR.

Conclusions

The Handy Eye Chart™ is a valid measure of visual acuity when compared with the international gold standard, the Landolt C Chart.

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References

  1. Balie IL, Lovie JE (1976) New design principles for visual acuity letter charts. Am J Optom Physiol Opt 53:740–745

    Article  Google Scholar 

  2. (1980) Recommended standard procedures for the clinical measurement and specification of visual acuity. Report of Working Group 39. Committee on vision. Assembly of Behavioral and Social Sciences, National Research Council, National Academy of Sciences, Washington, D.C. Adv Ophthalmol 42:103–148

  3. Cromelin CH, Candy TR, Lynn MJ et al (2012) The Handy Eye Chart™: a new visual acuity test for use in children. Ophthalmology 119(10):2009–2013

    Article  PubMed  PubMed Central  Google Scholar 

  4. Toner KN, Lynn MJ, Candy TR et al (2014) The Handy Eye Check™: a mobile medical application to test visual acuity in children. J AAPOS 18(3):258–260

    Article  PubMed  Google Scholar 

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Acknowledgements

The authors thank Dr. Scott Lambert, Dr. Jason Peragallo, and Dr. Phoebe Lenhart for including their patients in the study. Financial support was provided by an unrestricted gift to the Emory Eye Center from The Georgia Knights Templar Foundation, an unrestricted grant to the Emory Eye Center from Research to Prevent Blindness, Inc., New York, and a National Eye Institute Departmental Core grant EY006360.

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Authors and Affiliations

  1. The Department of Ophthalmology, Emory University School of Medicine, 1365 B Clifton Rd NE, Atlanta, GA, 30322, USA

    John P. Gorham, Beau B. Bruce & Amy K. Hutchinson

  2. Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA

    Beau B. Bruce

  3. Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA

    Beau B. Bruce

Authors
  1. John P. Gorham
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  2. Beau B. Bruce
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  3. Amy K. Hutchinson
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Corresponding author

Correspondence to Amy K. Hutchinson.

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Conflict of interest

Dr. John Gorham reports no conflicts of interest. Dr. Beau Bruce reports grants from Research to Prevent Blindness, from the National Institute of Health, and expert testimony for US Government—Department of Justice and Bayer, outside the submitted work. Dr. Bruce also reports a financial relationship with Finley Law Firm outside the submitted work. Dr. Amy Hutchinson has a proprietary interest in the Handy Eye Chart™. Dr. Hutchinson also reports grants from The Georgia Knights Templar, from Research to Prevent Blindness, and from National Eye Institute, outside the submitted work. In addition, Dr. Hutchinson has a patent design patent pending.

Informed consent

Informed consent was obtained from the parent’s of all participants under the age of 18, and from the participants when the participant was 18 years of age. Further, assent was obtained from all individuals under the age of 18.

Research involving human participants

This study was reviewed and approved by the Emory University Institutional Review Board, was Health Insurance Portability and Accountability Act compliant, and conformed to the tenets of the Declaration of Helsinki.

Statement on the welfare of animals

This study does not contain any studies with animals performed by any of the authors.

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Gorham, J.P., Bruce, B.B. & Hutchinson, A.K. Comparing distance visual acuity measurement with a novel eye chart and the Landolt C chart in a population of children aged 6–18 years. Int Ophthalmol 37, 1345–1348 (2017). https://doi.org/10.1007/s10792-016-0384-3

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  • DOI: https://doi.org/10.1007/s10792-016-0384-3

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