College of Optometry Vision Performance Institute :
Vision Ergonomics Research Group

James E. Sheedy, OD, PhD, Director

 

Mission

The Organizing Thesis of the OSU Vision Ergonomics Laboratory is that better vision and a better visual environment improve the comfort and work efficiency of people who perform critical visual tasks. 

The Mission of the OSU Vision Ergonomics Laboratory is to use scientific methods to understand the effects of vision and visual environment upon human performance and comfort and to apply this knowledge to improve vision performance in the workplace.

 

Research Team:

Sowjanya Gowrisankarn, BS Optom, MS
John Hayes, PhD
James Kundart, OD, MS
Hannu Laukkanen, OD, MS
Niru Nahar, MS
Padampriya Ramamoorthy, BS Optom, MS
Yu-Chi Tai, PhD

 

Recent publications and abstracts

 

Peer Reviewed Publications

 

  1. Butzon SP, Sheedy JE, Nilsen E. The efficacy of computer glasses at reducing worker symptoms.  Journal of the American Optometric Association 2002;73(4):221-30.
  1. Sheedy JE, Bergstrom N. Performance and Comfort on Near-Eye Computer Displays. Optom Vis Sci 2002; 79(5):306-12.
  1. Sheedy JE. Computer workplaces: on-site evaluations.  Practical Optometry 2002;13(7):220-8.
  1. Sheedy JE, Truong SD, Hayes JR. What are the visual benefits of squinting? Optom Vis Sci 2003;80:740-744.
  1. Sheedy JE, Hayes JR, Engle J. Is All Asthenopia the Same? Optom Vis Sci. 2003;80:732-739.
  1. Sheedy JE, Subbaram MV, Hayes JR. Filters on computer displays – effects on legibility, performance and comfort. Behaviour & Information Technology 2003;22(6):427-433.
  1. Sheedy JE. Progressive Addition Lenses – Matching the specific lens to patient needs.  Optometry 2004;75(2):83-102.
  1. Sheedy JE, Schanz, P, Bullimore. Evaluation of an automated subjective refractor. Optom Vis Sci, . 2004;81(5):334-340.
  1. Sheedy JE.  Correlation analysis of the optics of progressive addition lenses.  Optom Vis Sci. 2004;81(5):350-361.
  1. Sheedy JE, Subbaram M, Zimmerman AB, Hayes JR. Legibility of text. Human Factors 2005;47(4):797-815.
  1. Sheedy JE, Hardy RF.  The Optics of Occupational Progressive Lenses. Optometry 2005;76:432-441. 
  1. Berman SM, Navvab M, Martin MJ, Sheedy JE, Tithof W.  A comparison of traditional and high colour temperature lighting on the near acuity of elementary school children. Lighting Research and Technology 2006;38(1):41-52.
  1. Treaster, D, Marras, WS, Burr, D, Sheedy, JE, Hart, D. Myofascial trigger point development from visual and postural stressors during computer work.  Journal of Electromyography and Kinesiology 2006;16:115-124.
  1. Sheedy JE, Smith R, Hayes JR. Visual effects of the luminance surrounding a computer display. Ergonomics 2005;48(9):1114-1128.
  1. Sheedy JE, Campbell C, King-Smith E, Hayes, JR. Progressive powered lenses - the Minkwitz theorem. Optom Vis Sci,  2005;82(10):916-924.
  1. Sheedy JE, Gowrisankaran S, Hayes JR. Blink rate decreases with eyelid squint Optom Vis Sci,  2005;82(10):905-911.
  1. Sheedy JE, Hardy RF, Hayes JR.  Progressive addition lenses - measurements and ratings. Optometry 2006;77:23-39.
  1. Sheedy JE. Physiology of eyestrain. Journal of Modern Optics. Submitted.
  1. Gowrisankaran S,  Sheedy JE, Hayes JR. Eyelid squint response to asthenopia-inducing conditions. Submitted to Optom Vis Sci.
  1. Rempel D Anshel J, Kincaid L, Barr A, Willms K, Jaschinski W, Sheedy J. The effects of visual display distance on eye accommodation, head posture, and vision and neck symptoms. Submitted
  1. Nahar N, Sheedy J, Hayes J, Tai Y. Objective Measurements of Lower Level Visual Stress. Submitted to Optom Vis Sci.
  1. Hayes J, Sheedy J, Stelmack J, Heaney C. Effects of computer use on symptoms and quality of life. Submitted to Optom Vis Sci.

 

Reviewed abstracts

 

  1. Sheedy JE.  Will lighting with greater scotopic spectral weighting improve reading performance?  Proceedings of the 2002 Annual Conference of the Illuminating Engineering Society of North America, Salt Lake City, Utah. New York: IESNA, 2002.
  1. Sheedy JE, Truong S. What are the visual benefits of squinting? Optometry and Vision Science, 79(12s), 202, 2002.
  1. Sheedy JE, Engle J. Is all asthenopia the same?  Optometry and Vision Science, 79(12s), 203, 2002
  1. Subbaram VM, Sheedy JE.  Computer displays – performance and comfort comparison. Optometry and Vision Science, 79(12s), 285, 2002.
  1. Sheedy JE. Measurement and analysis of progressive addition lenses. Optometry and Vision Science, 80(12s), 16, 2003.
  1. Subbaram VM, Sheedy J, Hayes J. Primary parameters affecting font legibility.  Optometry and Vision Science, 80(12s), 24, 2003.
  1. Schanz P, Sheedy J, Bullimore M. Evaluation of an automated subjective refractor. Optometry and Vision Science, 80(12s), 114, 2003.
  1. Zimmerman A, Sheedy J, Subbaram M, Hayes JR. Font legibility – effects of pixel density and smoothing. Optometry and Vision Science, 80(12s), 195, 2003.
  1. Subbaram MJ, Sheedy JE. Effect of character spacing on word legibility and reading speed. Optometry and Vision Science, 81(12s), 282, 2004.
  1. Sheedy JE, Gowrisankaran S, Hayes J. Blink rate decreases with eyelid squint. Optometry and Vision Science, 81(12s), 290, 2004.
  1. Sheedy JE, King-Smith E, Hayes JR. Progressive powered lenses - the Minkwitz theorem. Optometry and Vision Science, 81(12s), 21, 2004.
  1. Sheedy JE, Smith R, Hayes JR. Visual effects of the luminance surrounding a computer display. Optometry and Vision Science, 81(12s), 137, 2004.
  1. Sheedy JE, Tai YC, Hayes JR, Ramamoorthy P. Character and font legibility. Optom Vis Sci 2005;82:E-abstract 050020
  1. Hayes JR, Sheedy JE, Stelmack J, Heaney C.. Effects of computer use on symptoms and quality of life. Optom Vis Sci 2005;82:E-abstract
  1. Tai  YC, Sheedy J, Hayes J. Effect of letter spacing on legibility, eye movements, and reading speed. Vision Sciences Society abstract 2006;248.
  1. Sheedy JE, Gowrisankaran S. Viewing compromised visual stimuli causes dry eye symptoms: role of the orbicularis muscle.  Vision Sciences Society abstract 2006;26.
  1. Nahar N, Sheedy J, Hayes J, Tai Y. Electromyography as an objective measure of visual stress. Optom Vis Sci 2006;83:E-abstract 060015.
  1. Ramamoorthy P, Sheedy J, Hayes J.  Visual needs predict PAL preference. Optom Vis Sci 2006;83:E-abstract 060079.
  1. Tai Y, Sheedy J.  Blink is not just a random event in reading. Optom Vis Sci 2006;83:E-abstract 060065.
  1. Gowrisankaran S, Sheedy J, Fogt, N, Hayes J.  Mapping the activity of the orbicularis oculi during eyelid squint. Optom Vis Sci 2006;83:E-abstract 060016.