My eyes don't see so well at night but I have never had problems with seeing a welding arc except when my HF auto dark setting got turned to 12 accidently. It didn't take me long to figure out something was wrong and checked the setting. Turned it back to 9 and it was OK then. IF you cant see the weld puddle, then you need to reposition yourself so you can. Even a 110V MIG should produce enough light to see the puddle if you are correctly positioned and the wire contact tube has the correct stick out.
Folks please don't use any thing less than a 9 shade when TIG welding, If you do a lot of it, it will be damaging to your eyes. TIG welding produces a lot more UV light (even though the arc seems smaller) than stick or FCAW because the smoke from these shields a lot of the UV from your eyes.