A temporary whitening of your vision, often called a "whiteout," can be caused by several factors, most commonly related to a sudden drop in blood pressure or changes in gravitational forces.
Causes of Temporary Vision Whitening
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Low Blood Pressure (Hypotension): Standing up too quickly, strenuous exercise, dehydration, or certain medications can all lower your blood pressure. This reduced blood flow to the brain can lead to a temporary loss of vision, appearing as a white or blurry field. [Reference: "Standing up too fast, overexerting, becoming dehydrated or taking certain medications can also lead to hypotension — low blood pressure — and potentially, a whiteout."]
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Changes in G-Force: Experiencing significant changes in gravitational forces, such as during a car accident or on a roller coaster, can also cause a temporary whiteout. This is due to the impact of these forces on blood flow to the brain. [Reference: “Whiteouts can occur with changes in G force,”]
Other Possible Causes (requiring further investigation)
While less common, other medical conditions can cause temporary or persistent vision changes. If whiteouts occur frequently or are accompanied by other symptoms, consult a doctor for proper diagnosis and treatment. These could include:
- Migraines: Some individuals experience visual disturbances like bright spots or whiteouts before or during a migraine.
- Transient Ischemic Attack (TIA) or Stroke: Although less likely to present solely as a whiteout, these conditions can cause temporary or permanent vision loss and require immediate medical attention.
It is crucial to note that this information is for general knowledge and should not be considered medical advice. Always consult a healthcare professional for any concerns about your vision or health.
