Ewan Eadie

Honorary Lecturer & Head of Scientific Services for Photobiology and Optical Radiation


Ewan graduated with first class honours from the University of Strathclyde in 2005 with Masters in Physics and Mathematical Finance. Following this he embarked on a PhD with Professor Harry Moseley at the Photobiology Department in Ninewells Hospital in Dundee. During his PhD he worked closely with the National Physical Laboratory (NPL) and published several papers including his work on the effect of exposure of photosensitive individuals to energy saving lamps and the optical radiation hazard from intense pulsed light (IPL) systems.

Having completed his PhD by the summer of 2009 he accepted a position in the Nuclear Medicine Department at Ninewells Hospital as a Route 2 Pre-registration Clinical Scientist. Whilst in the Nuclear Medicine Department he was involved in editing and co-authoring IPEM Report 111 Quality Control of Gamma Cameras and Nuclear Medicine Computer Systems.

Ewan completed his registration as a Clinical Scientist in October 2013 and moved back to the Photobiology Unit in August 2015, taking up the position of Head of Scientific Services for Photobiology and Optical Radiation.


Ewan’s specialist interest is accurate measurement of optical radiation, optical radiation safety and quality assurance. He has previously been involved with research into the ultraviolet output of sunbeds, demonstrating that nine out of ten sunbeds exceed safety limits. The recent focus is on innovative technology and how it can be used to improve patient care within optical radiation, particularly with respect to daylight Photodynamic Therapy. There are several grant applications and collaborations with industry, international partners, UK healthcare providers and public health bodies.


Group alumni

Dr Paul O’Mahoney, http://medicine.dundee.ac.uk/staff-member/dr-paul-omahoney


Lectures and conferences

  • O’Mahoney, P., Haigh, N., Davis, Á., Ibbotson, S.H., Wood, K., Brown, T. and Eadie, E. Novel Photodynamic Therapy Light Sources. Skin@Bath Symposium. Bath, UK.
  • Eadie, E. November 2017. Basic Principles of Photophysics and Ultraviolet Dosimetry. Third European Photodermatology Course. Brescia, Italy.
  • Eadie, E. November 2017. Dosimetry in PDT. Photodynamic Therapy Symposium 2017. Royal Society of Medicine, London.
  • Eadie, E. June 2017. Recent Advances in Photodermatology and Photodynamic Therapy. Photonex Roadshow Scotland 2017. University of Strathclyde, Glasgow.
  • Eadie, E., Campbell, K., Cochrane, A., McBride, K., McCurrach, G., Phanco, G. November 2016. Dosimetry Differences in Scottish UV Phototherapy. Optical Radiation Update. Manchester.
  • Eadie, E., O’Mahoney, P., Cordey, H., Tan, C-H., Ibbotson, S. 2016. O11:Review of Dose in Dundee’s Daylight PDT. Lasers in Medical Science. 2017;32:741.



Using Illuminance in Daylight PDT, https://youtu.be/ovqHKvzXM-A

Centre of Excellence Award for NHS Tayside Photobiology Unit, http://www.ahspartnership.org.uk/news/news.php?id=393

Using the sun to treat sun-damaged skin, https://www.thenakedscientists.com/articles/features/using-sun-treat-sun-damaged-skin

Nine out of 10 sunbeds have ‘unsafe’ UV levels, https://www.nhs.uk/news/cancer/nine-out-of-10-sunbeds-have-unsafe-uv-levels/


  • An Introduction to Photodermatology. MSc Design for Medical Technologies. University of Dundee.
  • Laser & IPL Safety in Healthcare. Bi-annual Introduction to Photodermatology, Photodynamic Therapy & Laser Therapy Course. Ninewells Hospital & Medical School.
  • Basic Laser Physics. Bi-annual Introduction to Photodermatology, Photodynamic Therapy & Laser Therapy Course. Ninewells Hospital & Medical School.
  • Phototesting by Wavelength. Bi-annual Introduction to Photodermatology, Photodynamic Therapy & Laser Therapy Course. Ninewells Hospital & Medical School.


  • Eadie, E., Ibbotson, S.H., Dawe, R.S. Irradiance, as well as body site and timing of readings, is important in determining ultraviolet A minimal erythemal dose. British Journal of Dermatology. 2018;178:297-298.
  • Cordey, H., Valentine, R., Lesar, A., Moseley, H., Eadie, E., Ibbotson, S. Daylight Photodynamic Therapy in Scotland. Scottish Medical Journal. 2017; 62(2):48-53.
  • O’Mahoney, P., Khazova, M., Higlett, M., Lister, T., Ibbotson, S., Eadie, E. The use of illuminance as a guide to effective light delivery during daylight PDT in the UK. British Journal of Dermatology. 2017; 176(6):1607-1616.
  • Eadie, E., Valentine, R., Thompson, G., Campbell, K., Moseley, H. Transmitted Irradiance Not As Expected in Enclosed Handheld Minimal Erythema Dose (MED) Device. Photodermatology, Photoimmunology and Photomedicine. 2016; 32(5-6):304-306.
  • Guntur Ramkumar, P., Lawson, B., Eadie, E., Davidson, J. Black Hole in the Breast. Clinical Nuclear Medicine. 2016; 41(3):219-20.
  • Avison, M., Cosgriff, P., Eadie, E., Gardner, G., Kerry, J. and Lawson, R. 2015. Life Cycle of a Gamma Camera. In: Eadie, E. ed. IPEM Report 111: Quality Control of Gamma Cameras and Nuclear Medicine Computer Systems. York: Institute of Physics and Engineering in Medicine, pp. 142-170.
  • Guntur Ramkumar, P., Eadie, E., Marron, G. Extracardiac Tumour Tracer Uptake in Myocardial Perfusion Scintigraphy. Circulation. 2014;129(11):1263-1264
  • Tierney, P., Ferguson, J., Ibbotson, S., Dawe, R., Eadie, E. and Moseley, H. Nine out of 10 sunbeds in England emit ultraviolet radiation levels that exceed current safety limits. British Journal of Dermatology. 2013;168:602-608
  • Eadie, E., Miller, P., Goodman, T. and Moseley, H. Assessment of the Optical Radiation Hazard from a Home-Use Intense Pulsed Light (IPL) Source. Lasers in Surgery and Medicine. 2009;41(7):534-539
  • Eadie, E., Ferguson, J. and Moseley, H. A Preliminary Investigation into the Effect of Exposure of Photosensitive Individuals to Light from Compact Fluorescent Lamps (CFL). British Journal of Dermatology. 2009;160(3):659-664
  • Eadie, E., Miller, P., Goodman, T. and Moseley, H. Time-resolved measurement shows a spectral distribution shift in an intense pulsed light system. Lasers in Medical Science. 2009;24(1):35-43
  • Town, G., Ash, C., Eadie, E. and Moseley, H. Measuring key parameters of intense pulsed light (IPL) devices. Journal of Cosmetic and Laser Therapy. 2007;9(3):148-60