Partial vision loss, sudden

What is the definition or description of: Partial vision loss?

I got my first migraine when i was 16. Can it cause partial loss of vision?

Could optic nerve edema which resulted in permanent partial vision loss be caused by fibromuscular dysplasia. ?

See dr urgently? Squiggly lines for a few years, increasingly in frequency, mostly on right, just had 5 minutes of partial vision loss right eye.

Can viagra (sildenafil) cause partial vision loss in one eye only?

I got a hyphema, could it result in permanent partial vision loss in that eye?

Can you have temporary partial loss of vision or light sensitivity during first trimester of pregnancy? How do you treat?

Yesterday, my dad had headache 2/10, blurred vision,said he experienced partial memory loss for around 2 hours. Today morning he had headache 6/10. Now, he is doesnt have one, no blurred vision, no paresthesia,he sais he's ok, should he go to the ER?

Can sinus/ear infection cause partial loss of vision?

Random partial vision loss in right eye. Is retinal detachment always a high possibility?