Chris A Johnson

Summary

Affiliation: University of Iowa
Country: USA

Publications

  1. doi request reprint A history of perimetry and visual field testing
    Chris A Johnson
    Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242 1091, USA
    Optom Vis Sci 88:E8-15. 2011
  2. doi request reprint Psychophysical factors that have been applied to clinical perimetry
    Chris A Johnson
    Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242 1091, USA
    Vision Res 90:25-31. 2013
  3. doi request reprint Occupational psychophysics to establish vision requirements
    Chris A Johnson
    Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa 52242 1091, USA
    Optom Vis Sci 85:910-23. 2008
  4. ncbi request reprint The Ocular Hypertension Treatment Study: baseline factors that predict the onset of primary open-angle glaucoma
    Mae O Gordon
    OHTS Coordinating Center, Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, Box 8203, 660 South Euclid, St Louis, MO 63110, USA
    Arch Ophthalmol 120:714-20; discussion 829-30. 2002
  5. ncbi request reprint A comparison of catch trial methods used in standard automated perimetry in glaucoma patients
    Michael Wall
    Department of Neurology, University of Iowa, College of Medicine, and Veterans Administration Hospital, Iowa City, IA, USA
    J Glaucoma 17:626-30. 2008
  6. pmc Delaying treatment of ocular hypertension: the ocular hypertension treatment study
    Michael A Kass
    Ocular Hypertension Treatment Study Coordinating Center, Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, Box 8203, 660 S Euclid Ave, St Louis, MO 63110, USA
    Arch Ophthalmol 128:276-87. 2010
  7. doi request reprint Use of a continuous probability scale to display visual field damage
    Michael Wall
    Department of Neurology, University of Iowa College of Medicine, Veterans Administration Hospital, 200 Hawkins Dr, 2007 RCP, Iowa City, IA 52242 1053, USA
    Arch Ophthalmol 127:749-56. 2009
  8. pmc Refinement of pointwise linear regression criteria for determining glaucoma progression
    Colleen M Kummet
    Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa
    Invest Ophthalmol Vis Sci 54:6234-41. 2013
  9. doi request reprint Total deviation probability plots for stimulus size v perimetry: a comparison with size III stimuli
    Michael Wall
    Department of Neurology, University of Iowa, College of Medicine, Veterans Administration Hospital, 200 Hawkins Dr, Ste 2007, Roy Carver Pavilion, Iowa City, IA 52242 1053, USA
    Arch Ophthalmol 126:473-9. 2008
  10. doi request reprint Size threshold perimetry performs as well as conventional automated perimetry with stimulus sizes III, V, and VI for glaucomatous loss
    Michael Wall
    Department of Ophthalmology, University of Iowa, College of Medicine, Veterans Administration Hospital, Iowa City, IA 52242, USA
    Invest Ophthalmol Vis Sci 54:3975-83. 2013

Collaborators

Detail Information

Publications17

  1. doi request reprint A history of perimetry and visual field testing
    Chris A Johnson
    Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242 1091, USA
    Optom Vis Sci 88:E8-15. 2011
    ....
  2. doi request reprint Psychophysical factors that have been applied to clinical perimetry
    Chris A Johnson
    Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242 1091, USA
    Vision Res 90:25-31. 2013
    ..It is hoped that this overview will be of assistance to investigators and clinicians who wish to use or modify this diagnostic procedure for their ongoing career activities. ..
  3. doi request reprint Occupational psychophysics to establish vision requirements
    Chris A Johnson
    Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa 52242 1091, USA
    Optom Vis Sci 85:910-23. 2008
    ..To develop and implement a comprehensive procedure for determining vision requirements for different vocational and occupational tasks...
  4. ncbi request reprint The Ocular Hypertension Treatment Study: baseline factors that predict the onset of primary open-angle glaucoma
    Mae O Gordon
    OHTS Coordinating Center, Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, Box 8203, 660 South Euclid, St Louis, MO 63110, USA
    Arch Ophthalmol 120:714-20; discussion 829-30. 2002
    ....
  5. ncbi request reprint A comparison of catch trial methods used in standard automated perimetry in glaucoma patients
    Michael Wall
    Department of Neurology, University of Iowa, College of Medicine, and Veterans Administration Hospital, Iowa City, IA, USA
    J Glaucoma 17:626-30. 2008
    ..To compare the false-positive (FP) response rates between 2 methods used by the Humphrey Field Analyzer in glaucoma patients...
  6. pmc Delaying treatment of ocular hypertension: the ocular hypertension treatment study
    Michael A Kass
    Ocular Hypertension Treatment Study Coordinating Center, Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, Box 8203, 660 S Euclid Ave, St Louis, MO 63110, USA
    Arch Ophthalmol 128:276-87. 2010
    ..To compare the safety and efficacy of earlier vs later treatment in preventing primary open-angle glaucoma (POAG) in individuals with ocular hypertension...
  7. doi request reprint Use of a continuous probability scale to display visual field damage
    Michael Wall
    Department of Neurology, University of Iowa College of Medicine, Veterans Administration Hospital, 200 Hawkins Dr, 2007 RCP, Iowa City, IA 52242 1053, USA
    Arch Ophthalmol 127:749-56. 2009
    ....
  8. pmc Refinement of pointwise linear regression criteria for determining glaucoma progression
    Colleen M Kummet
    Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa
    Invest Ophthalmol Vis Sci 54:6234-41. 2013
    ..The purpose of this study was to evaluate a range of PLR slope and significance criteria to define a clinically useful progression decision rule for longitudinal visual field examinations...
  9. doi request reprint Total deviation probability plots for stimulus size v perimetry: a comparison with size III stimuli
    Michael Wall
    Department of Neurology, University of Iowa, College of Medicine, Veterans Administration Hospital, 200 Hawkins Dr, Ste 2007, Roy Carver Pavilion, Iowa City, IA 52242 1053, USA
    Arch Ophthalmol 126:473-9. 2008
    ..To compare empirical probability plots in patients with glaucoma for size V and III perimetry testing...
  10. doi request reprint Size threshold perimetry performs as well as conventional automated perimetry with stimulus sizes III, V, and VI for glaucomatous loss
    Michael Wall
    Department of Ophthalmology, University of Iowa, College of Medicine, Veterans Administration Hospital, Iowa City, IA 52242, USA
    Invest Ophthalmol Vis Sci 54:3975-83. 2013
    ..43° diameter), V (1.72°), and VI (3.44°), and size threshold perimetry (STP), a method that finds threshold by changing stimulus size...
  11. ncbi request reprint The repeatability of mean defect with size III and size V standard automated perimetry
    Michael Wall
    Department of Ophthalmology, University of Iowa, College of Medicine, 200 Hawkins Drive, Iowa City, IA 52242 1053, USA
    Invest Ophthalmol Vis Sci 54:1345-51. 2013
    ..Our goal was to investigate the relationship of MD and its variability for two clinically used strategies (Swedish Interactive Threshold Algorithm [SITA] standard size III and full threshold size V) in glaucoma patients and controls...
  12. pmc Morphometric analysis and classification of glaucomatous optic neuropathy using radial polynomials
    Michael D Twa
    College of Optometry, University of Houston, Houston, TX 77204 2020, USA
    J Glaucoma 21:302-12. 2012
    ....
  13. doi request reprint Variability of rarebit and standard perimetry sizes I and III in normals
    Jesse M Vislisel
    Department of Ophthalmology and Neurology, University of Iowa, College of Medicine, Iowa City, IA, USA
    Optom Vis Sci 88:635-9. 2011
    ..To compare test-retest variability in rarebit perimetry (RBP) and conventional standard automated perimetry (SAP) using Goldmann size I and III stimuli...
  14. ncbi request reprint Vision and driving: the United States
    Chris A Johnson
    Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
    J Neuroophthalmol 30:170-6. 2010
    ..A newer test of visual attention, called the useful field of view, may be more predictive of safe driving than the traditional measures, but it has not been widely applied in licensing bureaus...
  15. doi request reprint Sensitivity and specificity of the Humphrey Matrix to detect homonymous hemianopias
    Parisa Taravati
    Department of Ophthalmology, University of Iowa, Iowa City, Iowa, USA
    Invest Ophthalmol Vis Sci 49:924-8. 2008
    ..To compare the sensitivity and specificity of the Humphrey Matrix frequency-doubling perimeter (Carl Zeiss Meditec, Inc., Dublin, CA) to that of standard automated perimetry (SAP) in detecting homonymous hemianopic visual field defects...
  16. ncbi request reprint A comparison of false-negative responses for full threshold and SITA standard perimetry in glaucoma patients and normal observers
    Chris A Johnson
    Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics Iowa City VA Health Care System, Iowa City, IA
    J Glaucoma 23:288-92. 2014
    ..To compare false-negative (FN) rates for Full Threshold (FULL) and Swedish Interactive Threshold Algorithm (SITA) Standard automated perimetry in healthy control subjects and glaucoma patients...
  17. ncbi request reprint The Ocular Hypertension Treatment Study: a randomized trial determines that topical ocular hypotensive medication delays or prevents the onset of primary open-angle glaucoma
    Michael A Kass
    Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St Louis, MO 63110, USA
    Arch Ophthalmol 120:701-13; discussion 829-30. 2002
    ..There is no consensus on the efficacy of medical treatment in delaying or preventing the onset of POAG in individuals with elevated IOP. Therefore, we designed a randomized clinical trial, the Ocular Hypertension Treatment Study...