Dr Thomas is an epidemiologist in diabetic eye disease in Swansea University Medical School. She has many years experience of working in and developing screening programmes to detect diabetic retinopathy having began her career as a grader in the national screening programme in Wales and then developing regional and national programmes in Mauritius and Trinidad. For the work in Mauritius and Trinidad the team was recognised by the Royal College of Physician’s in the UK by winning the Excellence in Patient care award in the international category. Dr Thomas is also the programme director for the MSc Diabetes Practice course at Swansea University which aims to provide knowledge and skills required by healthcare professionals to help people with diabetes self-manage their condition. The course is aimed at the diabetes multidisciplinary team i.e. doctors, nurses, pharmacists, dieticians and podiatrists. Her work in education was recognised in the 2021 quality in care awards as she won the outstanding educator in diabetes award as was part of the Diabetes101 social media team who won the collaboration project of the year and unsung hero awards. Dr Thomas is passionate about education people with diabetes and healthcare professionals about the effect diabetes can have on eye health and what can be done to prevent the damage as well as improving access to early detection and treatment for this preventable cause of blindness.