Evaluation of Blurry Vision in a Hypertensive Patient

Initial Assessment

• Blurry vision in a hypertensive patient requires prompt evaluation as it may indicate hypertensive retinopathy, choroidopathy, or more serious central nervous system involvement 3, 4, 5

Diagnostic Approach

Step 1: Comprehensive Eye Examination

• Fundoscopic examination is essential to evaluate for retinal changes, hemorrhages, papilledema, vascular tortuosity, and arteriovenous nipping 5, 6

Step 2: Blood Pressure Measurement and Classification

• Confirm hypertension with accurate BP measurement and classify severity 3, 4
• BP >180/110 mmHg with end-organ damage (including visual symptoms) constitutes a hypertensive emergency requiring immediate treatment 2

Step 3: Basic Laboratory Investigations

• Complete blood tests including sodium, potassium, serum creatinine, eGFR, lipid profile, and fasting glucose 6, 7
• Urinalysis to assess for renal involvement (proteinuria, hematuria) 6, 7
• 12-lead ECG to detect atrial fibrillation, left ventricular hypertrophy, or ischemic heart disease 5, 6

Step 4: Neuroimaging

• Brain MRI is indicated when a patient with hypertension presents with visual disturbances to evaluate for ischemic or hemorrhagic brain injury due to hypertension 5, 6
• MRI with and without contrast is preferred over CT for better visualization of posterior fossa structures and subtle vascular changes 2

Rationale for MRI in This Clinical Scenario

• MRI can detect early changes in the brain that may not be apparent on clinical examination 2