Ocular/Retinal Migraine

I'm 43 and am having ocular/retinal migraines.

It affects only my left eye and when I first notice it starting, I see a small jagged shape in the centre of my vision. It then slowly grows into an arc shape over about the next 30 minutes and moves to the edge of my vision and then disappears.

I can remember every episode. This first happened when I was about 23. The second time when I was about 37, then 41. But recently I've had 3 in 3 months. 6 in total.

Because I've had 3 very recently I'm concerned it may follow like this and potentially do damage to my eye in the long run.

I know that the cause of this is when the blood vessels narrow and restrict the blood flow to the eye.

I was hoping some members who may of suffered with many, maybe hundreds of episodes that have no issues with their sight could reassure me somewhat.

Link to info: https://www.nhs.uk/conditions/retinal-migraine/

Thank you.