Migraine is accompanied by blurred vision sometimes. It is well known that acupuncture works well for migraine.
Huh Im, a Korean doctor in the 1600s, prescribed treatment points for the condition. He recommended applying acupuncture on GB 20 풍지, ST 8 두유, and GB 13 본신 on the unaffected side, and retaining them for 10 breaths. Drawing out Qi makes a difference. He also recommended applying three moxa cones where there is thin hair and pulses can be felt, superior to the outer canthus of the eye.