H40.84

Clinical Causes: Diabetic retinopathy, especially when it’s advanced and causes abnormal blood vessel growth in the eye. Eye diseases involving ischemia or lack of oxygen, such as central retinal vein occlusion. Certain eye tumors that stimulate abnormal blood vessel formation. Chronic inflammation in the eye, which can promote new blood vessel growth.

Key Symptoms: Rapid or gradual loss of vision in one or both eyes. Reduced peripheral vision, leading to a narrowing of the visual field. Sudden eye pain or headache if the intraocular pressure becomes very high. Redness of the eye. Seeing halos around lights. Nausea or vomiting in severe cases due to increased eye pressure.

Diagnosis Path: To diagnose neovascular secondary angle closure glaucoma, an eye care professional will perform a comprehensive eye exam. This exam may include measuring intraocular pressure, inspecting the front structures of the eye with a slit lamp, and checking for the presence of abnormal blood vessels. Gonioscopy, a special lens examination, helps visualize the drainage angle of the eye to determine if it has closed or is obstructed. Additional imaging, such as fluorescein angiography, can also reveal abnormal blood vessel growth and areas of ischemia in the retina.

Treatment Protocols: Treatment focuses on lowering eye pressure, addressing the underlying cause of abnormal blood vessel growth, and preventing vision loss. Approaches may include: - **Medications:** Eye drops or oral drugs to reduce intraocular pressure. - **Laser therapy:** Panretinal photocoagulation (laser treatment to the retina) can help reduce abnormal blood vessel growth. - **Injections:** Anti-VEGF injections directly into the eye can stop the growth of new blood vessels. - **Surgical options:** In some cases, surgery might be necessary to create new pathways for fluid drainage or to remove damaged tissues. - **Managing underlying conditions:** Controlling systemic health issues like diabetes is crucial to prevent progression.