Naveen Kumar Yadav BS (H) Optom., Ph.D., F.A.A.O.

Vision Science Lead and Assistant Professor


Midwestern University
Chicago College of Optometry
Room 211-G/Science Hall 211-AA
555 31st Street
Downers Grove, IL 60515

Office: 630-960-3035
Fax: 630-960-3033
e-mail: nyadav@midwestern.edu




EDUCATION

B.Sc. Ch. Charan Singh University, India Biology 2000
B.S.(H) All India Institute of Medical Sciences, India Optometry 2004
M.S. University of Waterloo, Canada Vision Science 2008
Ph.D State University of New York, USA Vision Science 2014

RESEARCH SUMMARY

My clinical research is focussed on detecting and assessing visual dysfunctions in the Acquired Brain Injury (ABI) (i.e., TBI and stroke) population by using clinical objective techqniques (e.g., visual evoked potentials). I am also interesed in objectively assessing effects of visual interventions (e.g., vision rehabilitation therapy) provided to these patients.

CURRENT RESEARCH PROJECT

The purpose is to quantify visual/general attention objectively using the visual-evoked potential (VEP) in children with attention deficit. Forty five children (ages 11-17 years) will be participating in this study. Three attentional test conditions will be performed to modulate the attentional state to quantify the VEP alpha (i.e., 8-13 Hz) attenuation ratios (ARs) which are related to human attentional state. Furthermore, these objective quantitative findings will also be correlated with the subjective Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM V) questionnaire. In addition, eye movement recordings will also be performed to assess their eye movements. This objectively-based alpha attenuation ratios will be helpful for the clinician in diagnosing attentional deficits in children and additionally may be used to assess the effect of attentional intervention (e.g., attention therapy), along with the subjective and computerized measures, as its clinical correlate.

PUBLICATIONS-Full List

Yadav N.K., Almoqbel F.M, Head L.M, Irving E.L, Leat S.J. Threshold determination in sweep VEP and the effects of criterion. Documenta Ophthalmologica. 2009. 119: 109 – 121.

Leat S.J, Yadav N.K, Irving E.L. Development of visual acuity and contrast sensitivity in children (Review). Journal of Optometry. 2009. 2: 19–26.

Almoqbel F.M, Yadav N.K, Leat S.J, Head L.M, Irving E.L. Effects of sweep VEP parameters on visual acuity and contrast threshold in children and adults. Graefe's Archive for Clinical and Experimental Ophthalmology. 2010. 249:613-23.

Ciuffreda K. J, Yadav N.K, Han E, Ludlam D.P, Peddle A, Hulse P, Walter S, Han J. Distance perception in mild traumatic injury (mTBI). Optometry. 2012. 83:127-136.

Yadav N.K, Ludlam D.P, Ciuffreda K. J. Effect of different stimulus configurations on the visual evoked potential (VEP). Documenta Ophthalmologica. 2012. 124:177-196.

Ciuffreda K. J, Yadav N.K, Ludlam D.P. Effect of binasal occlusion (BNO) on the visual-evoked potential (VEP) in mild traumatic brain injury (mTBI). Brain Injury. 2013. 27:41-47.

Willeford K.T, Ciuffreda K.J, Yadav N.K, Ludlam D.P. Objective assessment of the human visual attentional state. Documenta Ophthalmologica. 2013. 126:29-44.

Willeford K.T, Ciuffreda K.J, Yadav N.K. Effect of test duration on the visual-evoked potential (VEP) and alpha-wave responses. Documenta Ophthalmologica. 2013. 126:105-115.

Gould J, Ciuffreda K. J, Arthur B, Yadav N.K. The effect of retinal defocus and ocular dominance on simple eye-hand reaction time. Optometry and Visual Performance. 2013. 1:129-136.

Yadav N.K, Ciuffreda K.J. Optimization of the pattern visual evoked potential in the visually normal and mild traumatic brain injury (mTBI) populations. Brain Injury. 2013. 27:1631-1642.

Gould J, Ciuffreda K.J, Yadav N.K, Thiagarajan P, Arthur B. The effect of retinal defocus on simple eye-hand and eye-foot reaction time in traumatic brain injury (TBI). Brain Injury. 2013. 27:1643-1648.

Yadav N.K, Thiagarajan P, Ciuffreda K.J. Effect of oculomotor vision rehabilitation on the visual-evoked potential and visual attention in mild traumatic brain injury. Brain Injury. 2014. 28:922-929.

Yadav N.K, Ciuffreda K.J. Effect of simulated octant visual field defects on the visual evoked potential (VEP). Journal of Optometry. 2014. 7:238-240.

Ciuffreda KJ, Ludlam D.P, Thiagarajan P, Yadav N.K, Capo-Aponte J. Proposed objective visual system biomarkers for mild Traumatic Brain Injury (mTBI): Brief Report. Military Medicine. 2014. 179:1212-1217.

Yadav N.K, Ciuffreda K.J. Effect of binasal occlusion (BNO) and base-in prisms on the visual-evoked (VEP) in mild traumatic brain injury (mTBI). Brain Injury. 2014. 28:1568-1580.

Yadav N.K, Ciuffreda K.J. Objective assessment of visual attention in mild traumatic brain injury (mTBI) using visual-evoked potentials (VEP). Brain Injury. 2015. 29:352-369.

Yadav N.K, Ciuffreda K.J, Willeford K.T, Thiagarajan P, Ludlam D.P. VEP and human attention: Translation from laboratory to clinic. Vision Development and Rehabilitation. 2015. 1:14-29.

Yadav N.K, Ciuffreda K.J. Assessing Hemianopia Objectively in stroke patients using the VEP technique: A Pilot Study. Vision Development and Rehabilitation. 2015. 1:30-38.

Fimreite V, Ciuffreda K.J, Yadav N.K. Effect of luminance on the visually-evoked potential in visually-normal individuals and in mTBI/concussion. Brain Injury. 2015. 17:1-12.

Ciuffreda K.J, Ludlam D.P, Yadav N.K. Conceptual model pyramid of optometric care in mild Traumatic Brain Injury (mTBI): A Perspective. Vision Development and Rehabilitation. 2015. 1:105-108.

Ciuffreda KJ, Ludlam DP, Yadav NK. Perspective: Objective visual system biomarkers for mild Traumatic Brain Injury (mTBI)/concussion. Vision Development and Rehabilitation. 2015. 1:256-259.

Ciuffreda KJ, Ludlam DP, Yadav NK. “Does vision therapy work? The wrong question: A Perspective” “the power of a lollipop”. Vision Development and Rehabilitation. 2016. 2:101-103.

Ciuffreda KJ, Ludlam DP, Yadav NK, Thiagarajan P. Traumatic Brain Injury: Visual consequences, diagnosis, and treatment. Advances in Ophthalmology and Optometry. (In press)

EXTRAMURAL GRANT

I just received a College of Optometrists in Vision Development (COVD) 2016 Research Grant totaling $4,000 for the project entitled, “Objective Assessment of Visual Attention in Younger Children with ADHD Using Visual Evoked Potentials (VEP)”.

RESEARCH INTEREST

ACADEMIC EXCELLENCE/AWARDS

2015-2016: Received an “Article of the Year” award for the year 2015 from the College of Optometrists in Vision Development (COVD) organization for an article entitled “VEP and Human Attention: Translation from Laboratory to Clinic”.

2013-2014: Irvin M. Borish Ezell Fellowship (sponsored by Essilor), American Optometric Foundation (AOF)

2013: Fellow of the American Academy of Optometry (FAAO)

2013-2014: College of Optometrists in Vision Development (COVD) Research Grant

2011, 2012, 2013, 2014: ARVO Student Travel Fellowship from American Academy of Optometry (AAO)

2010, 2012, 2013: American Academy of Optometry (AAO) Student Travel Fellowship

2009 – 2014: State University of New York, State College of Optometry, Graduate Scholarship

2007: University of Waterloo Travel Fellowship, University of Waterloo, Waterloo, Canada

2005 – 2007: International Master’s Scholarship Award (IMSA), University of Waterloo, Waterloo, Canada

2005 and 2006: University of Waterloo Graduate Scholarship Award, University of Waterloo, Waterloo, Canada

2004: Best Optometry Student Award from All India Institutes of Medical Sciences (AIIMS), New Delhi, India

2004: Passed “International Academy of Contact Lens Educator (IACLE)” examination

PEER REVIEWER

Journal of Optometry (www.journalofoptometry.org)

Military Medicine Journal (http://publications.amsus.org/)

PROFESSIONAL AFFILIATIONS

American Academy of Optometry (AAO), Fellow

The Association for Research in Vision and Ophthalmology (ARVO), member

College of Optometrists in Vision Development (COVD), member

TEACHING INTEREST

Visual Neurophysiology

Visual Perception