Dr Matt J Dunn

Dr Matt J Dunn

Lecturer, Assessment & Feedback Lead

School of Optometry and Vision Sciences

+44(0)29 208 70576
Room 2.12, Optometry and Vision Sciences, Heol Maendy, Cathays, Caerdydd, CF24 4HQ
Media commentator
Available for postgraduate supervision

Mae'r cynnwys hwn ar gael yn Saesneg yn unig.


My principal research interests are in visual perception, oculomotor neurophysiology and experimental psychophysics. I have a particular focus on understanding the neuropsychology underpinning perceptual experience in infantile nystagmus. Much of my work involves eye and/or body tracking, combining new technologies with classical psychophysical methods to understand the complex relationship between perception and action. As an optometrist, I typically recruit patients with orthoptic or perceptual disorders to better understand visual physiology. I am also the author of the popular ophthalmology e-textbook Dunn Vision Reference.

Professional memberships

  • GOC registered optometrist
  • Fellow, Higher Education Academy (FHEA)
  • Member of the College of Optometrists (MCOptom)

Academic positions

  • 2014 – 2016: Research Associate, School of Optometry and Vision Sciences, Cardiff University
  • 2013 – 2015: Teacher, School of Optometry and Vision Sciences, Cardiff University
  • 2014: Research Associate, Department of Neuroscience, Cardiff and Vale University Local Health Board
  • 2013 – 2014: Research Associate, School of Psychology, Cardiff University
  • 2010 – 2013: Clinical supervisor, School of Optometry and Vision Sciences, Cardiff University

Speaking engagements

  • 2017: Vision 2017 (The Hague, Netherlands) – “’Time to see’ in infantile nystagmus”
  • 2016: Rank Prize Funds (Grasmere, UK) – “Visual perception in the presence of nystagmus”
  • 2016: Oxford, Bristol, Cardiff & Southampton Alliance in Vision Research (Cardiff, UK) – “Seeing with nystagmus”
  • 2016: 100% Optical (London, UK) – “A clinician’s guide to nystagmus”
  • 2016: Public lectures (Boomtown Fair & Green Gathering, UK) – “How experience shapes perception: perspectives from visual neuroscience”
  • 2015: Midland Peripatetic Group for Teachers of the Visually Impaired (Birmingham, UK) – "Seeing with nystagmus"
  • 2015: LV Prasad Eye Institute (Hyderabad, India) – "Visual perception in infantile nystagmus"
  • 2015: Public lecture (Green Gathering, UK) – "Neuroscience of visual perception"
  • 2015: UC Berkeley (California, US) – "Visual perception in infantile nystagmus"
  • 2015: University of Houston (Texas, US) – "Visual perception in infantile nystagmus"
  • 2015: Orthoptics Decoded (Madurai, India) – "Orthoptic treatments for nystagmus" (session moderator) / "Supranuclear gaze palsies"
  • 2015: Nystagmus Network International Research Workshop (New Orleans, Louisiana) – "Visual timing in infantile nystagmus"
  • 2015: ARVO Annual Meeting (Denver, Colorado) – "Visual processing in infantile nystagmus is not slow"
  • 2014: Public lecture (Sunrise Festival, UK) – "Psychophysics and perception"
  • 2013: Nystagmus Network International Research Workshop (Abingdon, UK) – "Appropriate measures of visual performance in infantile nystagmus: Acuity is not enough"
  • 2013: European Conference on Eye Movements (Lund, Sweden) – "Involuntary saccade initiation is related to the timing of voluntary saccades in infantile nystagmus"
  • 2013: ARVO Annual Meeting (Seattle, Washington) – "Visual acuity in infantile nystagmus in the absence of image motion"
  • I am registered as a STEMnet ambassador, and provide public talks on vision science and perception.

I teach clinical optometry and orthoptics, and have previously delivered the Visual Perception lecture series at Cardiff University. I am recognised as a fellow of the Higher Education Academy (FHEA).

Modules currently taught

  • OP3205 – Occupational Optometry, Law and Business (module leader)
  • OP3103 – Binocular Vision
  • OP3101 – Primary Eye Care
  • OP3107 – Research Project (supervisor)
  • OPT006 – Paediatric Ophthalmology
  • OPT007 – Eye Care for People with Learning Disabilities
  • OP0205 – Introductory Optometry

Modules previously taught

  • OP2206 – Colour Vision and Perception (module leader)
  • OP3106 & OP2207 – Visual Perception (module leader)
  • OP2104 – Binocular Vision
  • OP2103 – Investigative Techniques
  • MATLAB programming (staff & postgraduate training course)

Current PhD students (with anticipated completion year)

2020 Mason Wells (lead supervisor)
Mapping residual visual function in hemianopia

2019 Nikita Thomas (lead supervisor)
Retinal predictors of visual performance in infantile nystagmus

2018 James Brawn Evaluating eye movements as biomarkers for monitoring the progression of Huntington's Disease to facilitate early intervention and clinical management


KJ Peall, L McIlreavy, MJ Dunn, JT Erichsen, £5000 Characterisation of ocular motor function in adult-onset cervical dystonia, NMHRI, 2017

N Thomas, MJ Dunn, J Acton, JT Erichsen, £1387 Additional Clinical Testing for Retinal predictors of visual performance in nystagmus, Nystagmus Network, 2017

PL Clatworthy, SK Rushton, MJ Dunn, £8510 The effect of visual cognitive impairment due to cerebrovascular disease on walking, North Bristol Trust, 2016

MJ Dunn (PI), JH Acton, JT Erichsen, £55,827 Retinal predictors of visual performance in infantile nystagmus, College of Optometrists, 2016

MJ Dunn (PI) & SK Rushton, £810 Binding hand movements to visual percepts, CUROP, 2015

MJ Dunn, £19,573 Understanding binocular vision in infantile nystagmus, College of Optometrists, 2014

MJ Dunn (PI) & JT Erichsen, £14,552 Establishing clinical measures of temporal visual function in infantile nystagmus, Nystagmus Network UK, 2014

MJ Dunn (PI) & JT Erichsen, £1,500, Nystagmus analysis software development grant, Nystagmus Network UK, 2013

Areas of expertise

External profiles