H44.513

Clinical Causes: Prolonged elevated intraocular pressure: The most common cause, often resulting from untreated glaucoma leading to optic nerve damage. Optic nerve damage: Progressive damage to the optic nerve fibers due to increased intraocular pressure. Structural abnormalities of the eye: Including angle-closure mechanisms or other anatomical issues blocking fluid drainage. History of eye trauma or injury: Past trauma can lead to structural changes increasing the risk. Increased age: The risk of developing severe glaucoma increases with age. Genetic factors: Family history of glaucoma significantly raises risk. Certain underlying health conditions: Such as vascular disorders, diabetes, or other systemic diseases that compromise eye health.

Key Symptoms: Gradual loss of peripheral vision: Patients often first notice tunnel vision as the side visual fields diminish. Decreased ability to see in low light: Night vision impairment may occur during disease progression. Blind spots: Development of spots in the visual field that cannot be corrected with glasses. Headaches or eye pain: Though less common in the absolute stage, some individuals may experience discomfort. Appearance of a cloudy or swollen cornea: In advanced cases, corneal edema may be observed. Complete vision loss: Once the condition reaches the absolute stage, no visual perception remains in either eye.

Diagnosis Path: Diagnosis primarily involves comprehensive eye examinations including intraocular pressure measurement, visual field testing, and optic nerve assessment. An ophthalmologist may also use gonioscopy to evaluate the drainage angle and imaging techniques like OCT (Optical Coherence Tomography) to assess optic nerve damage. The identification of advanced optic nerve damage and loss of visual fields indicates the progression towards absolute glaucoma.

Treatment Protocols: Absolute glaucoma is a stage where vision cannot be restored, and management focuses on preventing discomfort and secondary complications. Typical approaches include: - **Palliative care:** To relieve symptoms and improve comfort. - **Medications:** Corticosteroid drops or other topical agents may be used to reduce inflammation and intraocular pressure in earlier stages, but are not effective once absolute glaucoma has developed. - **Surgical interventions:** Procedures such as enucleation (removal of the eye) or evisceration may be considered in cases of pain or to prevent infection. - **Supportive care:** Adjustments with visual aids and support for coping with vision loss are essential for quality of life. It is crucial to consult with an ophthalmologist to develop a personalized management plan based on the progression and specific circumstances.