Hi. I'm online and happy to answer your question today.
Did it involve your central vision such that you could not read with that eye?
Also, did you have any other physical symptoms?
I coud read with the eye but a portion of the eye was blocked. No other physical conditions
Did this problem with reading occur when both eyes were open?
yes both eyes were open
Ok., in that case, would you say that since you noticed the cut in your visual field that the darkening of the vision may have been affecting both eyes, even though it seemed like it was in just the right eye?
forgot to add "since both eyes were open when you noticed this..." :0)
This is a very important distinction to make sure we get right as it totally changes the differential diagnosis of your eye problem.
No, I checked that by closing the eye that was bothersome and the other eye was fine. It was only in one eye
ok..Thanks for making that clear to me....
Since this only lasted for a brief time and then your vision returned to normal it is not due to a retina problem etc.
It sounds like what you are suffering from is something called Amaurosis fugax (AF).
Amaurosis fugax is the transient loss of vision in one eye. It has many causes and, in the early 1990's, a study called the Amaurosis Fugax Study Group defined and grouped them to help with diagnosis and treatment of this problem.
What can cause AF? It can be due to an embolism, problems with the blood, problems with the eye itself or, sometimes due to no cause we can figure out (idiopathic). I would be happy to go through all the different diagnostic possibilities in each of these categories but I don't think that is the best use of your time.....you need to know what to do.
AF is a symptom that something serious is wrong. It can be a warning that you are heading toward a dangerous vascular event such as a TIA, stroke or even death. It is important for you to see your ophthalmologist and possibly your internal medicine physician ASAP. What will they do? A complete history and physical, a complete eye examination, maybe a fluorescein angiogram of your retina, laboratory tests, possibly ultrasound of your carotid arteries or an CT/MRI of your head.
Treatment depends on what is found on the above workup.
I can not stress enough the need for you to be seen for a complete exam as soon as possible.
While you did not experience a complete loss of vision I still believe you need a good workup. An ophthalmologist should also examine your retina for something called a hollenhorst plaque, which can come from cholesterol plaques breaking off from somewhere in your body and lodging in an artery in your eye. These can cause a transient loss of visual field like you experienced
My pleasure. I wish you the best.