H16.4

Clinical Causes: Chronic eye inflammation, such as keratitis or uveitis Corneal trauma or injury Prolonged use of contact lenses, especially if improperly fitted Corneal hypoxia (lack of oxygen), often associated with extended contact lens wear Infections affecting the cornea, including bacterial, viral, or fungal keratitis Corneal degenerations or dystrophies Previous eye surgeries or procedures that damage the cornea Exposure to ultraviolet light or other environmental irritants

Key Symptoms: Decreased or blurred vision Redness and swelling around the eye Light sensitivity (photophobia) Discomfort or foreign body sensation in the eye Visible blood vessels in the cornea, often seen as a network of red or pink lines Potential patient concern about appearance or visual quality

Diagnosis Path: Diagnosis typically involves a comprehensive eye examination performed by an eye care professional. The process includes visual acuity tests, slit-lamp biomicroscopy to closely examine the cornea, and possibly corneal imaging techniques such as angiography. These assessments help determine the extent of neovascularization and identify underlying causes. Additional laboratory tests or cultures may be performed if an infection or specific inflammatory process is suspected.

Treatment Protocols: Treatment approaches aim to control or reduce abnormal vessel growth and address underlying causes. Options include: - **Medical therapies:** Use of corticosteroid eye drops to decrease inflammation or anti-VEGF (vascular endothelial growth factor) agents to inhibit new vessel formation. - **Management of underlying conditions:** Treating infections, controlling inflammation, or removing contact lenses appropriately. - **Laser therapy:** Photocoagulation to selectively destroy problematic blood vessels. - **Surgical intervention:** In more severe cases, procedures such as corneal transplant or other corrective surgeries might be considered. Preventive measures involve maintaining good eye hygiene, avoiding prolonged or improper use of contact lenses, and protecting the eyes from environmental irritants. Early detection and management are crucial to prevent vision loss and preserve eye health.