Diabetes: A Silent Threat to Sight

While diabetes is often considered for its physical impacts, such as thirst, fatigue, or cardiovascular risks, it also quietly impacts vision, compromising the quality of life, independence and safety of care home residents. This article outlines the background of diabetic retinopathy, examines current screening pathways, and highlights practical steps care homes can take to protect their residents' sight.

What is diabetic retinopathy (DR)?

Diabetic retinopathy is a common complication of diabetes, affecting about one in three people with the condition in the UK (Haider et al., 2021). Over time, high blood sugar levels damage and block the delicate blood vessels supplying the retina, starving it of oxygen. To compensate, the eye attempts to grow new blood vessels, but these are fragile and prone to leaking fluid into the retina.

Left unmanaged, this can lead to retinal swelling (macular oedema), retinal detachment, and permanent vision loss. Because these changes develop silently without early symptoms, regular diabetic eye screening is vital to detect and treat damage before vision is affected.

Diabetic Eye Screening Pathway (DESP)

While the NHS provides a nationally commissioned pathway, the Diabetic Eye Screening Pathway (DESP), social care residents often fall through the cracks. Common barriers include mobility challenges, particularly for bedbound residents, and a reluctance to leave familiar care environments. Furthermore, standard outpatient screening services are rarely adapted for individuals with complex physical or cognitive needs, such as those living with dementia.

Vision Loss, Dementia and Falls

12.3%, or roughly one in eight people with diabetes have sight-threatening retinopathy (Haider et al., 2021). For care home residents, the impact extends far beyond sight alone given the clear links between visual impairment and broader physical and cognitive decline.

In the UK, vision loss is associated with up to a 50% higher risk of developing dementia (Alzheimer’s Society, 2024). Furthermore, residents living with both dementia and visual impairment face double the risk of suffering falls (RNIB, 2021). Managing diabetic retinopathy requires a holistic approach; proactive care is vital to safeguard resident independence, mobility, and overall wellbeing.

Protect Residents' Sight

Unmanaged diabetic retinopathy leads to permanent vision loss. Removing traditional barriers to screening ensures timely detection, protecting the health, safety, and independence of care home residents. Mobile eye examinations ensure vulnerable residents who cannot attend outpatient appointments still receive essential screening — improving health outcomes while reducing the administrative and logistical burden on care staff.

For care home providers interested in learning more about implementing bedside mobile eye care for residents, contact the SightWatcher team: Contact form

0333 444 0505

info@sightwatcher.com

References

●     Haider, S., Thayakaran, R., Subramanian, A., Toulis, K. A., Moore, D., Price, M. J., & Nirantharakumar, K. (2021). Disease burden of diabetes, diabetic retinopathy and their future projections in the UK: cross-sectional analyses of a primary care database. BMJ Open, 11(7), e050058. https://doi.org/10.1136/bmjopen-2021-050058 

●     Alzheimer’s Society, 2024. Vision loss and the risk of dementia. [online] Available at: https://www.alzheimers.org.uk/about-dementia/managing-the-risk-of-dementia/reduce-your-risk-of-dementia/vision-loss-and-risk [Accessed 16 July 2026].

●     Royal National Institute of Blind Persons (RNIB), 2021. Practice Note - Falls, Dementia and Sight Loss. London: RNIB.