Diabetic Retinopathy & Macular Oedema
Connect retinal screening, systemic care and specialist treatment of diabetic eye disease.
Quick revision ↓ Medical Dictionary
01Why screening matters
Diabetic retinal disease may be advanced before symptoms develop. Retinal screening identifies risk in people who feel their vision is normal, but it does not replace assessment of new symptoms. Encourage attendance through the applicable local programme and support patients who face access barriers. Record missed or pending referrals and make responsibility for follow-up explicit.
02Nonproliferative changes
Microaneurysms, retinal haemorrhages and other microvascular changes can occur before new vessels develop. Severity assessment uses the distribution and extent of findings rather than one isolated spot. Visual acuity may remain good despite disease. Retinal photographs and clinical examination support grading, while ungradable images require further evaluation rather than a declaration that no retinopathy is present.
03Proliferative disease
Retinal ischaemia can stimulate abnormal new vessels. These are fragile and may bleed into the vitreous; associated fibrous tissue can cause tractional retinal detachment. New floaters or sudden visual loss therefore require prompt assessment. Specialist management may include retinal laser, intravitreal treatment or surgery depending on the disease and the ability to attend follow-up.
04Macular oedema
Fluid leakage affecting the macula can reduce central vision and may occur at different retinopathy stages. Optical coherence tomography helps assess retinal thickening and fluid. Treatment depends on centre involvement, visual function and other factors. Anti-VEGF therapy and selected alternatives require a monitored plan; one injection does not automatically complete the course of care.
05Whole-patient management
Coordinate glucose, blood pressure and other cardiovascular risk management with the diabetes team. Explain that good systemic care lowers future risk but does not remove the need for retinal follow-up. Pregnancy or major treatment changes may require coordinated eye monitoring. Avoid directing abrupt medication changes solely from an educational eye assessment without the responsible treating team.
High-Yield Revision
- Normal perceived vision does not remove the need for screening.
- Macular oedema and proliferative disease are distinct problems.
- Ungradable screening images need further assessment.
Common Pitfalls
- Waiting for symptoms before screening.
- Assuming one retinal treatment ends follow-up.
References & Further Reading
Read the relevant guideline sections alongside these original clinical teaching cases. Local pathways, available services and individual patient factors determine care.
Reference review: 28 September 2026. Consult current local protocols for prescribing, procedures and escalation.