Measuring daylight: a review of dosimetry in daylight photodynamic therapy

Paul O'Mahoney, Marina Khazova, Ewan Eadie, Sally Ibbotson

Research output: Contribution to journalReview articlepeer-review

13 Citations (Scopus)
119 Downloads (Pure)


Successful daylight photodynamic therapy (DPDT) relies on the interaction of light, photosensitisers and oxygen. Therefore, the ‘dose’ of light that a patient receives during treatment is a clinically relevant quantity, with a minimum dose for effective treatment recommended in the literature. However, there are many different light measurement methods used in the published literature, which may lead to confusion surrounding reliable and traceable dose measurement in DPDT, and what the most appropriate method of light measurement in DPDT might be. Furthermore, for the majority of practitioners who do not carry out any formal dosimetry and for the patients receiving DPDT, building confidence in the evidence supporting this important treatment option is of key importance. This review seeks to clarify the methodology of DPDT and discusses the literature relating to DPDT dosimetry.

Original languageEnglish
Article number143
Number of pages14
Issue number4
Publication statusPublished - 20 Sept 2019


  • Actinic keratosis
  • Daylight
  • Dosimetry
  • Photodynamic therapy
  • Sunscreen

ASJC Scopus subject areas

  • Molecular Medicine
  • Pharmaceutical Science


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