How Poorly Treated Retinal Vein Occlusion Can Lead to Glaucoma: The Importance of Early Specialist Care in Reading,

Retinal vein occlusion (RVO) is one of the most common causes of sudden, painless vision loss. Although modern treatments have dramatically improved outcomes, delayed diagnosis or inadequate treatment can increase the risk of serious complications. One of the most sight-threatening is neovascular glaucoma (NVG), a condition that can cause irreversible vision loss if not recognised and treated promptly.

When a retinal vein becomes blocked, parts of the retina may lose their blood supply and become oxygen deprived—a process known as retinal ischaemia. In response, the retina releases high levels of vascular endothelial growth factor (VEGF), a protein that stimulates the growth of abnormal new blood vessels. While this is the body's attempt to improve oxygen delivery, these fragile vessels often grow on the iris and within the eye's drainage angle, where they obstruct the normal outflow of fluid.

As the drainage channels become blocked, intraocular pressure can rise rapidly, leading to neovascular glaucoma. Unlike many other forms of glaucoma, neovascular glaucoma is often painful, progresses quickly and can cause permanent damage to the optic nerve within a short period if left untreated. Prevention is therefore far more effective than treating established disease.

Early diagnosis and appropriate management of retinal vein occlusion are the best ways to reduce the risk of neovascular glaucoma. Regular retinal examinations, optical coherence tomography (OCT), and careful assessment for retinal ischaemia allow patients at higher risk to be identified before complications develop. Where clinically indicated, anti-VEGF injections help suppress VEGF activity, while panretinal photocoagulation (PRP) laser treatment can reduce the ischaemic drive responsible for abnormal blood vessel growth.

Mr Kumar is an experienced MR consultant with extensive expertise in the management of retinal vein occlusion and its complications. Every patient receives a comprehensive retinal assessment using advanced imaging technology to evaluate the severity of retinal disease, detect areas of ischaemia and identify the earliest signs of neovascularisation. This proactive approach allows treatment to be initiated at the optimal time, helping to prevent neovascular glaucoma before irreversible damage occurs.

If raised eye pressure or neovascular glaucoma is detected, Mr Kumar ensures that treatment is commenced without delay. Management may include anti-VEGF therapy, PRP laser treatment, pressure-lowering medication and, where appropriate, coordinated care with glaucoma specialists to achieve the best possible outcome. This multidisciplinary, evidence-based approach helps protect both retinal and optic nerve function.

Patients from Reading, Windsor, Berkshire and the surrounding Thames Valley are referred to Mr Kumar for specialist assessment and treatment of retinal vein occlusion, macular oedema and retinal vascular disease. His commitment to early diagnosis, meticulous monitoring and personalised treatment plans helps minimise the risk of sight-threatening complications while maximising long-term visual outcomes.

If you have experienced sudden blurred vision or have been diagnosed with a retinal vein occlusion, timely assessment by an experienced retinal specialist is essential. With early intervention and expert follow-up, many of the most serious complications—including neovascular glaucoma—can be prevented, giving patients the best chance of preserving their vision for the future.