Medicines for Diabetic retinopathy

The most important "treatment" is not a single eye medicine but good control of blood sugar, blood pressure and cholesterol, because keeping these well managed slows the damage to the retina and protects sight. When the condition reaches sight-threatening stages, ophthalmology may use specific eye treatments. These include anti-VEGF medicines injected into the eye, which reduce the growth of abnormal new blood vessels and the leakage of fluid that cause macular oedema and proliferative retinopathy. Laser treatment and, in some cases, surgery are also used depending on the stage and pattern of disease. These specialist eye treatments work alongside — not instead of — good control of your diabetes and risk factors. Your eye team decides which is right for you.

Because diabetic retinopathy frequently causes no symptoms at all until it is already advanced — your vision can seem completely normal while damage is building up at the back of the eye. Diabetic eye screening exists precisely for this reason: photographs of the retina are taken to detect changes early, before they affect your sight, so that treatment can be arranged at the right time if it is needed. By the time you notice a change in vision, the condition may be more advanced and harder to treat. This is why everyone with diabetes is offered regular screening, and why attending every appointment — even when you feel fine — is one of the most important things you can do to protect your eyesight.

Good control of blood sugar, blood pressure and cholesterol can slow the progression of diabetic retinopathy and is the foundation of protecting your sight, which is why managing your diabetes well matters so much. Early changes may remain stable for a long time with good control and regular monitoring. For more advanced, sight-threatening stages, specialist eye treatments — laser, anti-VEGF injections or surgery — aim to stabilise the condition and prevent further loss of vision. The earlier the condition is found, generally through screening, the more can be done to protect sight, which is why screening and prompt attention to any vision changes are so important. Your diabetes and eye teams will guide the right combination of control and treatment.

Seek urgent eye care straight away if you have a sudden loss or blurring of vision, a sudden burst of many new floaters, flashing lights, or a dark shadow or "curtain" spreading across part of your sight. In someone with diabetes, these can be signs of bleeding inside the eye or a detachment of the retina, both of which need immediate assessment to give the best chance of saving vision. Do not wait for your next routine screening appointment if these symptoms appear — contact an urgent eye service or A&E with eye facilities without delay. Any new or gradual change in vision should also be checked promptly by your optician or GP, even if it seems minor.