Suddenly blurred vision, dizziness, nausea, and vomiting
Sudden blurred vision, dizziness, nausea, and vomiting may be caused by physiological factors, or may be related to pathological conditions such as benign paroxysmal positional vertigo (BPPV) or hypertension. Appropriate treatment should be selected based on the specific underlying cause. The detailed analysis is as follows:
1. Physiological Factors
If there has been excessive smoking or alcohol consumption recently, or high levels of mental stress, cerebral blood supply may become insufficient, leading to symptoms such as dizziness, nausea, vomiting, and blurred vision. These are generally normal phenomena that can gradually improve once unhealthy habits are corrected.
2. Pathological Factors
1) Benign Paroxysmal Positional Vertigo (BPPV)
When otoliths (calcium crystals in the inner ear) become dislodged, patients may experience BPPV symptoms during head movements, typically including dizziness, nausea, and vomiting. In such cases, dizziness, nausea, and vomiting may occur. Patients can take medications under a doctor's guidance and undergo canalith repositioning procedures to move the displaced otoliths back to their proper position.
2) Hypertension
In patients with high blood pressure, changes in cerebral blood flow may lead to insufficient blood supply to the brain, resulting in the aforementioned symptoms. Patients should follow medical advice and use antihypertensive medications such as nifedipine controlled-release tablets or amlodipine besylate tablets.
Besides the above causes, symptoms could also result from intracerebral hemorrhage, cerebral infarction, or brain tumors. It is recommended to seek timely medical evaluation at a hospital for accurate diagnosis and targeted treatment.