What Causes Sudden Vision Loss In The Left Eye?
Possible ischemic event, requires attention.
Detailed Answer:
I read your question carefully and I understand your concern.
That loss of vision requires attention. The most common cause for such unilateral vision loss is usually ischemic, lack of blood supply. Fortunately the obstruction was cleared without a lasting deficit but it does however require attention as it indicates a high risk of other ischemic events like stroke.
For that reason you should have a heart evaluation for sources of heart emboli (blood clots released from the heart in the circulation) as well as imaging of the carotid arteries, the neck vessels taking blood to the brain. Such carotid imaging means at least a Doppler ultrasound, or even better an Angio CT or Angio MRI scan. Depending on imaging findings it will be decided whether alterations in therapy are needed.
I remain at your disposal for other questions.