Blood Flow
While engaged in exercise or stretching, the flow to your brain and eyes may temporarily be limited. This can create visual disturbances, such as seeing spots, floaters or other strange visual phenomena. The situation should be temporary and the spots should go away once normal blood flow returns.
Why does my vision go dark when I exercise?
A temporary vision change while exercising could simply be a sign that you didn't eat enough that day and have low blood sugar or low blood pressure. Environmental factors can also be a cause: Vision can blur when eyes are dry from running in the cold or wind, or irritated from sweat and sunscreen.
Why do I black out when I stretch my back?
Stretch syncope
It is reported to occur in teenage boys with a familial tendency to faint. It has been attributed to effects of straining (which decreases systemic blood pressure) in combination with decreased cerebral blood flow caused by mechanical compression of the vertebral arteries.
What is vision darkening a symptom of?
This is a symptom of a variety of conditions, including amblyopia, optic neuritis, retinal detachment, macular degeneration, glaucoma, cataracts, or brain tumor. If you note dimness of vision, see an ophthalmologist to have the problem diagnosed and treated.
Is orthostatic hypotension life threatening?
In people with orthostatic hypotension, hypoperfusion to other organs contributes to an increased risk of life-threatening health problems, including heart attack or heart failure, a heart rhythm abnormality called atrial fibrillation , stroke, or chronic kidney failure.
What are the symptoms of C7-T1 narrowing?
C7-T1 pathology often presents as neck pain, radiating arm pain to digits 4 and 5, along with numbness, tingling, and weakness.