Hello everyone. I am a 50 year old female. In the last year my problem has gotten worse. I experienced black floater's, now I experience blackness across my eye's. This is happening more often now. It scares me, because it happens sometimes when I am driving. When it happens it totally blinds me to where I try to pull over until it is finished. What causes this?
Please see an opthamologist for an eye exam. Not an optometrist or optician but an opthamologist, a true eye doctor. You need a thorough vision exam, including dilation, so the optic nerve can be seen.
It may be a form of retinal detachment. It is also possible that it is a cardiac problem. Loss of blood flow, possibly due to blocked arteries or veins, can lead to temporary blindness. It may also be a form of spasm causing an obstructed blood flow.
Less likely, but still something to consider, it may be a TIA (mini stroke).
See your doctors ASAP. You should also not be driving with this condition.