Tom Wemyss

I work on research and software in healthcare and data science, with a goal to improve health outcomes and patient experience.

Python Machine Learning JavaScript TypeScript Flutter

Articles

Writing emails in markdown with neomutt and pandoc
Neomutt is a fast and easily-extensible terminal-based email client. This post is a discussion of how to configure neomutt to generate styled HTML emails which maintain compatibility with text-only email clients.
Read more
A stylised graphic showing a person using a laptop.

Media

Newseria, 2023
Diagnozowanie anemii będzie możliwe bez badania krwi.
A short discussion with Newseria, the largest private news agency in Poland, covering our research screening for anaemia using a smartphone.
Published in Polish.
See more at newseria.pl
A screenshot from Hunan TV, showing a research paper and a presenter.
Le Monde, 2023
Dépister l’anémie à l’aide d’un smartphone
An article written by the Science Services team at Le Monde, covering my PhD research using smartphone colorimetry to screen for anaemia in pre-school aged children.
Published in French.
See more at lemonde.fr
An infographic produced by Le Monde, showing a smartphone taking an image of the eye of a child.
Hunan TV, 2023
Detecting anaemia using a smartphone
A brief segment for Hunan Satellite TV's show "Seeking Truth in News", which was viewed by an audience of around 10 million people. This covered our research screening for anaemia, and the ethical implications of this technology.
Published in Mandarin.
See more at mgtv.com
A screenshot from Hunan TV, showing a research paper and a presenter.

Publications

Annu Int Conf IEEE Eng Med Biol Soc Late-breaking Abstract, 2026
Using a U-Net to segment sclera and lower eyelid on smartphone images of the face in varying populations in India and Ghana.
Wemyss T. A., Alagl Y., Zhang Y., Meek J., Hillman S., Dadhwal V., Enweronu-Laryea C., Rana A., Leung T. S.
Annu Int Conf IEEE Eng Med Biol Soc Poster, 2026
Imaging relative oxygen saturation in bulbar conjunctival vessels using a slit lamp with a smartphone-compatible multispectral camera.
Wemyss T. A., Zhang Y., Borgoo A., Rajendram R., Leung T. S.
London Imaging Meeting Poster, 2026
Comparing a smartphone-compatible multispectral camera with a smartphone RGB camera for distinguishing between similar absorbers.
Wemyss T. A., Borgoo A., Leung T. S.
Annu Int Conf IEEE Eng Med Biol Soc, 2025
Pitfalls in Using Pallor of the Eye to Detect Anaemia with Digital Cameras.
Wemyss T. A., Ranjan R., Leung T. S.
doi.org/10.1109/embc58623.2025.11253991
Research Involvement and Engagement, 2025
A commentary on ophthalmic patients co-designing a new tool to better understand their hospital letters.
Sumodhee D., Venning K., Moghul I., Wemyss T. A., Ramessur R., Abbas M., Ioannidou E., Baker H., Nguyen Q., Wang C., Balaskas K., Pontikos P., Thomas P. B. M.
doi.org/10.1186/s40900-025-00697-0
Physiological Measurement, 2025
Diagnosing anaemia via smartphone colorimetry of the eye in a population of pregnant women.
Wemyss T. A., Rana A., Hillman S. L., Nixon-Hill M., Yadav K., Dadhwal V., Leung T.
doi.org/10.1088/1361-6579/adab4d
ARVO Annual Meeting Abstract, 2024
Skin tone alone is not a strong predictor of scleral lesions affecting suitability of the anterior segment for colorimetric analysis.
Wemyss T. A., Rana A., Yadav K., Hillman S. L., Rajendram R., Dadhwal V., Leung T.
iovs.arvojournals.org/article.aspx?articleid=2799298
PLOS ONE, 2023
Feasibility of smartphone colorimetry of the face as an anaemia screening tool for infants and young children in Ghana.
Wemyss T. A., Nixon-Hill M., Outlaw F., Karsa A., Meek J., Enweronu-Laryea C., and Leung T.
doi.org/10.1371/journal.pone.0281736
BMJ Open Opthalmology, 2021
Improving productivity, costs and environmental impact in International Eye Health Services: using the 'Eyefficiency' cataract surgical services auditing tool to assess the value of cataract surgical services.
Goel H., Wemyss T. A., Harris T., et al
doi.org/10.1136/bmjophth-2020-000642
Open Biology, 2021
Repurposing of Synaptonemal Complex Proteins for Kinetochores in Kinetoplastida.
Tromer E. C., Wemyss T. A., Waller R. F., and Akiyoshi B.
doi.org/10.1098/rsob.210049
JAMA Ophthalmology, 2021
Evaluation of a Home-Printable Vision Screening Test for Telemedicine.
Crossland M.D., Dekker T. M., Hancox J., Lisi M., Wemyss T. A., and Thomas P. B. M.
doi.org/10.1001/jamaophthalmol.2020.5972
Proceedings of the Royal Society B, 2020
The last channel: vision at the temporal margin of the field.
Veto P., Thomas P. B. M., Alexander P., Wemyss T., and Mollon J. D.
doi.org/10.1098/rspb.2020.0607

Experience

Research Associate in Smartphone Neonatal Jaundice Screening
University College London
Dec 2025 - Feb 2027

Research role with responsibility for design of usability engineering activities (ISO 62366).

PhD in Medical Imaging
University College London
2020 - 2026

EPSRC studentship for the UCL CDT in Intelligent, Integrated Healthcare Imaging.

1-year MRes followed by 3-year PhD. Including taught modules on user-centred data visualisation, research software engineering, and machine learning. Teaching assistant responsibilities for computer science and medical physics modules.

Project: Development of affordable smartphone imaging technology to be used in screening for maternal and neonatal anaemia

Head of Innovation Pipeline
OKKO Health
2023

Responsible for the new product development process development and implementation, including intellectual property strategy.

Vision Scientist
OKKO Health
2020 - 2022

Designed and carried out pre-clinical research studies to investigate new techniques to measure vision using smartphones. Assisted with design control for vision-science related components of the product.

MSci Natural Sciences (Biochemistry)
University of Cambridge
2019 - 2020

Project: Re-inventing chromosome segregation: evolution of the kinetoplastid kinetochore

Software Engineer
Informatics Solutions
2019 - Present

Delivered software solutions for research clients, including software modification for a wiki on genetic vision conditions, and a mobile app for tracking the carbon footprint of cataract surgery.